Home / 8,578,775,419.40-12,868,163,129.10-5,313,601,915.40

Finding the Fourth Proportional to 8,578,775,419.40, 12,868,163,129.10 and 5,313,601,915.40

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Solution

The fourth proportional to 8,578,775,419.40, 12,868,163,129.10 and 5,313,601,915.40 is: 7,970,402,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578,775,419.40 : 12,868,163,129.10 = 5,313,601,915.40 : x
  2. Step 2: Convert to fraction form
    8,578,775,419.40/12,868,163,129.10 = 5,313,601,915.40/x
  3. Step 3: Cross multiply
    8,578,775,419.40x = 12,868,163,129.10 × 5,313,601,915.40
  4. Step 4: Simplify right side
    8,578,775,419.40x = 68,376,296,250,465,411,072
  5. Step 5: Solve for x
    x = 68,376,296,250,465,411,072/8,578,775,419.40
  6. Step 6: Final answer
    x = 7,970,402,873.10

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Double scale
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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.