Home / 72,762,737.84-100,411,962.32-40,166,990

Finding the Fourth Proportional to 72,762,737.84, 100,411,962.32 and 40,166,990

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Solution

The fourth proportional to 72,762,737.84, 100,411,962.32 and 40,166,990 is: 55,430,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,762,737.84 : 100,411,962.32 = 40,166,990 : x
  2. Step 2: Convert to fraction form
    72,762,737.84/100,411,962.32 = 40,166,990/x
  3. Step 3: Cross multiply
    72,762,737.84x = 100,411,962.32 × 40,166,990
  4. Step 4: Simplify right side
    72,762,737.84x = 4,033,246,286,387,816.50
  5. Step 5: Solve for x
    x = 4,033,246,286,387,816.50/72,762,737.84
  6. Step 6: Final answer
    x = 55,430,106.21

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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.