Home / 72,423,093.12-99,941,875.20-39,828,046.08

Finding the Fourth Proportional to 72,423,093.12, 99,941,875.20 and 39,828,046.08

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Solution

The fourth proportional to 72,423,093.12, 99,941,875.20 and 39,828,046.08 is: 54,961,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,423,093.12 : 99,941,875.20 = 39,828,046.08 : x
  2. Step 2: Convert to fraction form
    72,423,093.12/99,941,875.20 = 39,828,046.08/x
  3. Step 3: Cross multiply
    72,423,093.12x = 99,941,875.20 × 39,828,046.08
  4. Step 4: Simplify right side
    72,423,093.12x = 3,980,489,610,787,209
  5. Step 5: Solve for x
    x = 3,980,489,610,787,209/72,423,093.12
  6. Step 6: Final answer
    x = 54,961,607.40

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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.