Home / 72,330,881.50-99,816,655.35-39,737,933.02

Finding the Fourth Proportional to 72,330,881.50, 99,816,655.35 and 39,737,933.02

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Solution

The fourth proportional to 72,330,881.50, 99,816,655.35 and 39,737,933.02 is: 54,838,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,330,881.50 : 99,816,655.35 = 39,737,933.02 : x
  2. Step 2: Convert to fraction form
    72,330,881.50/99,816,655.35 = 39,737,933.02/x
  3. Step 3: Cross multiply
    72,330,881.50x = 99,816,655.35 × 39,737,933.02
  4. Step 4: Simplify right side
    72,330,881.50x = 3,966,507,564,578,724.50
  5. Step 5: Solve for x
    x = 3,966,507,564,578,724.50/72,330,881.50
  6. Step 6: Final answer
    x = 54,838,368.93

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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.