Home / 147,288,985.98-220,869,444.06-42,221,189.28

Finding the Fourth Proportional to 147,288,985.98, 220,869,444.06 and 42,221,189.28

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Solution

The fourth proportional to 147,288,985.98, 220,869,444.06 and 42,221,189.28 is: 63,313,427.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,288,985.98 : 220,869,444.06 = 42,221,189.28 : x
  2. Step 2: Convert to fraction form
    147,288,985.98/220,869,444.06 = 42,221,189.28/x
  3. Step 3: Cross multiply
    147,288,985.98x = 220,869,444.06 × 42,221,189.28
  4. Step 4: Simplify right side
    147,288,985.98x = 9,325,370,603,825,632
  5. Step 5: Solve for x
    x = 9,325,370,603,825,632/147,288,985.98
  6. Step 6: Final answer
    x = 63,313,427.96

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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.