Home / 64,609,376.80-96,783,428.40-40,273,607.20

Finding the Fourth Proportional to 64,609,376.80, 96,783,428.40 and 40,273,607.20

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Solution

The fourth proportional to 64,609,376.80, 96,783,428.40 and 40,273,607.20 is: 60,328,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,609,376.80 : 96,783,428.40 = 40,273,607.20 : x
  2. Step 2: Convert to fraction form
    64,609,376.80/96,783,428.40 = 40,273,607.20/x
  3. Step 3: Cross multiply
    64,609,376.80x = 96,783,428.40 × 40,273,607.20
  4. Step 4: Simplify right side
    64,609,376.80x = 3,897,817,778,850,925
  5. Step 5: Solve for x
    x = 3,897,817,778,850,925/64,609,376.80
  6. Step 6: Final answer
    x = 60,328,979.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.