Home / 213,547,487.10-320,321,230.65-77,253,906.30

Finding the Fourth Proportional to 213,547,487.10, 320,321,230.65 and 77,253,906.30

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Solution

The fourth proportional to 213,547,487.10, 320,321,230.65 and 77,253,906.30 is: 115,880,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,547,487.10 : 320,321,230.65 = 77,253,906.30 : x
  2. Step 2: Convert to fraction form
    213,547,487.10/320,321,230.65 = 77,253,906.30/x
  3. Step 3: Cross multiply
    213,547,487.10x = 320,321,230.65 × 77,253,906.30
  4. Step 4: Simplify right side
    213,547,487.10x = 24,746,066,338,535,784
  5. Step 5: Solve for x
    x = 24,746,066,338,535,784/213,547,487.10
  6. Step 6: Final answer
    x = 115,880,859.45

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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.