Home / 453,547,234.60-680,320,851.90-308,428,412.20

Finding the Fourth Proportional to 453,547,234.60, 680,320,851.90 and 308,428,412.20

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Solution

The fourth proportional to 453,547,234.60, 680,320,851.90 and 308,428,412.20 is: 462,642,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,547,234.60 : 680,320,851.90 = 308,428,412.20 : x
  2. Step 2: Convert to fraction form
    453,547,234.60/680,320,851.90 = 308,428,412.20/x
  3. Step 3: Cross multiply
    453,547,234.60x = 680,320,851.90 × 308,428,412.20
  4. Step 4: Simplify right side
    453,547,234.60x = 209,830,280,138,068,352
  5. Step 5: Solve for x
    x = 209,830,280,138,068,352/453,547,234.60
  6. Step 6: Final answer
    x = 462,642,618.30

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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.