Home / 291,397,187.10-437,039,793.45-86,931,932.70

Finding the Fourth Proportional to 291,397,187.10, 437,039,793.45 and 86,931,932.70

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Solution

The fourth proportional to 291,397,187.10, 437,039,793.45 and 86,931,932.70 is: 130,381,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,397,187.10 : 437,039,793.45 = 86,931,932.70 : x
  2. Step 2: Convert to fraction form
    291,397,187.10/437,039,793.45 = 86,931,932.70/x
  3. Step 3: Cross multiply
    291,397,187.10x = 437,039,793.45 × 86,931,932.70
  4. Step 4: Simplify right side
    291,397,187.10x = 37,992,713,911,417,304
  5. Step 5: Solve for x
    x = 37,992,713,911,417,304/291,397,187.10
  6. Step 6: Final answer
    x = 130,381,196.50

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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.