Home / 147,020,609.40-220,194,990.90-86,554,433.40

Finding the Fourth Proportional to 147,020,609.40, 220,194,990.90 and 86,554,433.40

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Solution

The fourth proportional to 147,020,609.40, 220,194,990.90 and 86,554,433.40 is: 129,633,884.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,020,609.40 : 220,194,990.90 = 86,554,433.40 : x
  2. Step 2: Convert to fraction form
    147,020,609.40/220,194,990.90 = 86,554,433.40/x
  3. Step 3: Cross multiply
    147,020,609.40x = 220,194,990.90 × 86,554,433.40
  4. Step 4: Simplify right side
    147,020,609.40x = 19,058,852,674,867,656
  5. Step 5: Solve for x
    x = 19,058,852,674,867,656/147,020,609.40
  6. Step 6: Final answer
    x = 129,633,884.34

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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.