Home / 397,963,001.52-549,181,586.08-216,911,543.28

Finding the Fourth Proportional to 397,963,001.52, 549,181,586.08 and 216,911,543.28

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Solution

The fourth proportional to 397,963,001.52, 549,181,586.08 and 216,911,543.28 is: 299,333,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,963,001.52 : 549,181,586.08 = 216,911,543.28 : x
  2. Step 2: Convert to fraction form
    397,963,001.52/549,181,586.08 = 216,911,543.28/x
  3. Step 3: Cross multiply
    397,963,001.52x = 549,181,586.08 × 216,911,543.28
  4. Step 4: Simplify right side
    397,963,001.52x = 119,123,825,377,570,976
  5. Step 5: Solve for x
    x = 119,123,825,377,570,976/397,963,001.52
  6. Step 6: Final answer
    x = 299,333,920.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.