Home / 9,030,375,411.30-12,459,106,585.80-5,218,509,657.78

Finding the Fourth Proportional to 9,030,375,411.30, 12,459,106,585.80 and 5,218,509,657.78

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Solution

The fourth proportional to 9,030,375,411.30, 12,459,106,585.80 and 5,218,509,657.78 is: 7,199,918,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,030,375,411.30 : 12,459,106,585.80 = 5,218,509,657.78 : x
  2. Step 2: Convert to fraction form
    9,030,375,411.30/12,459,106,585.80 = 5,218,509,657.78/x
  3. Step 3: Cross multiply
    9,030,375,411.30x = 12,459,106,585.80 × 5,218,509,657.78
  4. Step 4: Simplify right side
    9,030,375,411.30x = 65,017,968,045,307,691,008
  5. Step 5: Solve for x
    x = 65,017,968,045,307,691,008/9,030,375,411.30
  6. Step 6: Final answer
    x = 7,199,918,617.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.