Home / 1,305,280,688.30-1,957,921,032.45-443,637,680.30

Finding the Fourth Proportional to 1,305,280,688.30, 1,957,921,032.45 and 443,637,680.30

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Solution

The fourth proportional to 1,305,280,688.30, 1,957,921,032.45 and 443,637,680.30 is: 665,456,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,280,688.30 : 1,957,921,032.45 = 443,637,680.30 : x
  2. Step 2: Convert to fraction form
    1,305,280,688.30/1,957,921,032.45 = 443,637,680.30/x
  3. Step 3: Cross multiply
    1,305,280,688.30x = 1,957,921,032.45 × 443,637,680.30
  4. Step 4: Simplify right side
    1,305,280,688.30x = 868,607,545,046,699,008
  5. Step 5: Solve for x
    x = 868,607,545,046,699,008/1,305,280,688.30
  6. Step 6: Final answer
    x = 665,456,520.45

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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.