Home / 207,178,444.80-310,892,083.20-85,997,260.80

Finding the Fourth Proportional to 207,178,444.80, 310,892,083.20 and 85,997,260.80

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Solution

The fourth proportional to 207,178,444.80, 310,892,083.20 and 85,997,260.80 is: 129,047,534.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,178,444.80 : 310,892,083.20 = 85,997,260.80 : x
  2. Step 2: Convert to fraction form
    207,178,444.80/310,892,083.20 = 85,997,260.80/x
  3. Step 3: Cross multiply
    207,178,444.80x = 310,892,083.20 × 85,997,260.80
  4. Step 4: Simplify right side
    207,178,444.80x = 26,735,867,559,605,696
  5. Step 5: Solve for x
    x = 26,735,867,559,605,696/207,178,444.80
  6. Step 6: Final answer
    x = 129,047,534.77

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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.