Home / 147,020,400.90-220,194,678.15-86,554,224.90

Finding the Fourth Proportional to 147,020,400.90, 220,194,678.15 and 86,554,224.90

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Solution

The fourth proportional to 147,020,400.90, 220,194,678.15 and 86,554,224.90 is: 129,633,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,020,400.90 : 220,194,678.15 = 86,554,224.90 : x
  2. Step 2: Convert to fraction form
    147,020,400.90/220,194,678.15 = 86,554,224.90/x
  3. Step 3: Cross multiply
    147,020,400.90x = 220,194,678.15 × 86,554,224.90
  4. Step 4: Simplify right side
    147,020,400.90x = 19,058,779,694,378,216
  5. Step 5: Solve for x
    x = 19,058,779,694,378,216/147,020,400.90
  6. Step 6: Final answer
    x = 129,633,571.79

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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.