Home / 72,394,735.32-99,905,384.88-39,355,048.08

Finding the Fourth Proportional to 72,394,735.32, 99,905,384.88 and 39,355,048.08

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Solution

The fourth proportional to 72,394,735.32, 99,905,384.88 and 39,355,048.08 is: 54,310,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,394,735.32 : 99,905,384.88 = 39,355,048.08 : x
  2. Step 2: Convert to fraction form
    72,394,735.32/99,905,384.88 = 39,355,048.08/x
  3. Step 3: Cross multiply
    72,394,735.32x = 99,905,384.88 × 39,355,048.08
  4. Step 4: Simplify right side
    72,394,735.32x = 3,931,781,225,403,304.50
  5. Step 5: Solve for x
    x = 3,931,781,225,403,304.50/72,394,735.32
  6. Step 6: Final answer
    x = 54,310,319.78

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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.