Home / 72,927,009.86-100,635,203.13-39,880,737.86

Finding the Fourth Proportional to 72,927,009.86, 100,635,203.13 and 39,880,737.86

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Solution

The fourth proportional to 72,927,009.86, 100,635,203.13 and 39,880,737.86 is: 55,033,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,927,009.86 : 100,635,203.13 = 39,880,737.86 : x
  2. Step 2: Convert to fraction form
    72,927,009.86/100,635,203.13 = 39,880,737.86/x
  3. Step 3: Cross multiply
    72,927,009.86x = 100,635,203.13 × 39,880,737.86
  4. Step 4: Simplify right side
    72,927,009.86x = 4,013,406,155,515,381.50
  5. Step 5: Solve for x
    x = 4,013,406,155,515,381.50/72,927,009.86
  6. Step 6: Final answer
    x = 55,033,192.27

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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.