Home / 72,006,623.18-99,369,136.61-38,966,868.55

Finding the Fourth Proportional to 72,006,623.18, 99,369,136.61 and 38,966,868.55

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Solution

The fourth proportional to 72,006,623.18, 99,369,136.61 and 38,966,868.55 is: 53,774,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006,623.18 : 99,369,136.61 = 38,966,868.55 : x
  2. Step 2: Convert to fraction form
    72,006,623.18/99,369,136.61 = 38,966,868.55/x
  3. Step 3: Cross multiply
    72,006,623.18x = 99,369,136.61 × 38,966,868.55
  4. Step 4: Simplify right side
    72,006,623.18x = 3,872,104,084,503,554
  5. Step 5: Solve for x
    x = 3,872,104,084,503,554/72,006,623.18
  6. Step 6: Final answer
    x = 53,774,276.77

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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.