Home / 838,152,618.39-1,257,423,457.55-285,459,835.14

Finding the Fourth Proportional to 838,152,618.39, 1,257,423,457.55 and 285,459,835.14

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Solution

The fourth proportional to 838,152,618.39, 1,257,423,457.55 and 285,459,835.14 is: 428,256,006.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,152,618.39 : 1,257,423,457.55 = 285,459,835.14 : x
  2. Step 2: Convert to fraction form
    838,152,618.39/1,257,423,457.55 = 285,459,835.14/x
  3. Step 3: Cross multiply
    838,152,618.39x = 1,257,423,457.55 × 285,459,835.14
  4. Step 4: Simplify right side
    838,152,618.39x = 358,943,892,891,964,480
  5. Step 5: Solve for x
    x = 358,943,892,891,964,480/838,152,618.39
  6. Step 6: Final answer
    x = 428,256,006.15

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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.