Home / 397,963,043.66-549,181,644.08-216,911,585.27

Finding the Fourth Proportional to 397,963,043.66, 549,181,644.08 and 216,911,585.27

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Solution

The fourth proportional to 397,963,043.66, 549,181,644.08 and 216,911,585.27 is: 299,333,978.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,963,043.66 : 549,181,644.08 = 216,911,585.27 : x
  2. Step 2: Convert to fraction form
    397,963,043.66/549,181,644.08 = 216,911,585.27/x
  3. Step 3: Cross multiply
    397,963,043.66x = 549,181,644.08 × 216,911,585.27
  4. Step 4: Simplify right side
    397,963,043.66x = 119,123,861,018,866,128
  5. Step 5: Solve for x
    x = 119,123,861,018,866,128/397,963,043.66
  6. Step 6: Final answer
    x = 299,333,978.16

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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.