Home / 145,157,079.40-217,735,619.10-42,912,010.60

Finding the Fourth Proportional to 145,157,079.40, 217,735,619.10 and 42,912,010.60

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Solution

The fourth proportional to 145,157,079.40, 217,735,619.10 and 42,912,010.60 is: 64,368,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,157,079.40 : 217,735,619.10 = 42,912,010.60 : x
  2. Step 2: Convert to fraction form
    145,157,079.40/217,735,619.10 = 42,912,010.60/x
  3. Step 3: Cross multiply
    145,157,079.40x = 217,735,619.10 × 42,912,010.60
  4. Step 4: Simplify right side
    145,157,079.40x = 9,343,473,194,816,762
  5. Step 5: Solve for x
    x = 9,343,473,194,816,762/145,157,079.40
  6. Step 6: Final answer
    x = 64,368,015.90

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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.