Home / 315,035,246.70-472,552,870.05-85,003,962.30

Finding the Fourth Proportional to 315,035,246.70, 472,552,870.05 and 85,003,962.30

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Solution

The fourth proportional to 315,035,246.70, 472,552,870.05 and 85,003,962.30 is: 127,505,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,035,246.70 : 472,552,870.05 = 85,003,962.30 : x
  2. Step 2: Convert to fraction form
    315,035,246.70/472,552,870.05 = 85,003,962.30/x
  3. Step 3: Cross multiply
    315,035,246.70x = 472,552,870.05 × 85,003,962.30
  4. Step 4: Simplify right side
    315,035,246.70x = 40,168,866,350,487,000
  5. Step 5: Solve for x
    x = 40,168,866,350,487,000/315,035,246.70
  6. Step 6: Final answer
    x = 127,505,943.45

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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.