Home / 288,887,384.48-398,665,347.64-156,728,374.16

Finding the Fourth Proportional to 288,887,384.48, 398,665,347.64 and 156,728,374.16

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Solution

The fourth proportional to 288,887,384.48, 398,665,347.64 and 156,728,374.16 is: 216,285,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,887,384.48 : 398,665,347.64 = 156,728,374.16 : x
  2. Step 2: Convert to fraction form
    288,887,384.48/398,665,347.64 = 156,728,374.16/x
  3. Step 3: Cross multiply
    288,887,384.48x = 398,665,347.64 × 156,728,374.16
  4. Step 4: Simplify right side
    288,887,384.48x = 62,482,171,769,548,392
  5. Step 5: Solve for x
    x = 62,482,171,769,548,392/288,887,384.48
  6. Step 6: Final answer
    x = 216,285,567.06

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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.