Home / 72,255,989.17-99,713,363.78-39,216,238.80

Finding the Fourth Proportional to 72,255,989.17, 99,713,363.78 and 39,216,238.80

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Solution

The fourth proportional to 72,255,989.17, 99,713,363.78 and 39,216,238.80 is: 54,118,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,255,989.17 : 99,713,363.78 = 39,216,238.80 : x
  2. Step 2: Convert to fraction form
    72,255,989.17/99,713,363.78 = 39,216,238.80/x
  3. Step 3: Cross multiply
    72,255,989.17x = 99,713,363.78 × 39,216,238.80
  4. Step 4: Simplify right side
    72,255,989.17x = 3,910,383,085,547,750.50
  5. Step 5: Solve for x
    x = 3,910,383,085,547,750.50/72,255,989.17
  6. Step 6: Final answer
    x = 54,118,463.13

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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.