Home / 7,920,881,567.10-11,881,322,350.65-6,642,393,953.40

Finding the Fourth Proportional to 7,920,881,567.10, 11,881,322,350.65 and 6,642,393,953.40

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Solution

The fourth proportional to 7,920,881,567.10, 11,881,322,350.65 and 6,642,393,953.40 is: 9,963,590,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,881,567.10 : 11,881,322,350.65 = 6,642,393,953.40 : x
  2. Step 2: Convert to fraction form
    7,920,881,567.10/11,881,322,350.65 = 6,642,393,953.40/x
  3. Step 3: Cross multiply
    7,920,881,567.10x = 11,881,322,350.65 × 6,642,393,953.40
  4. Step 4: Simplify right side
    7,920,881,567.10x = 78,920,423,740,353,822,720
  5. Step 5: Solve for x
    x = 78,920,423,740,353,822,720/7,920,881,567.10
  6. Step 6: Final answer
    x = 9,963,590,930.10

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Double scale
Find fourth proportional to 7,920,881,568.10, 11,881,322,352.15 and 6,642,393,954.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.