Home / 83,238,922.40-124,808,617.20-42,928,138.40

Finding the Fourth Proportional to 83,238,922.40, 124,808,617.20 and 42,928,138.40

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Solution

The fourth proportional to 83,238,922.40, 124,808,617.20 and 42,928,138.40 is: 64,366,541.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,238,922.40 : 124,808,617.20 = 42,928,138.40 : x
  2. Step 2: Convert to fraction form
    83,238,922.40/124,808,617.20 = 42,928,138.40/x
  3. Step 3: Cross multiply
    83,238,922.40x = 124,808,617.20 × 42,928,138.40
  4. Step 4: Simplify right side
    83,238,922.40x = 5,357,801,592,674,220
  5. Step 5: Solve for x
    x = 5,357,801,592,674,220/83,238,922.40
  6. Step 6: Final answer
    x = 64,366,541.98

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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.