Home / 147,594,991.20-221,486,965.20-86,184,031.20

Finding the Fourth Proportional to 147,594,991.20, 221,486,965.20 and 86,184,031.20

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Solution

The fourth proportional to 147,594,991.20, 221,486,965.20 and 86,184,031.20 is: 129,331,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,594,991.20 : 221,486,965.20 = 86,184,031.20 : x
  2. Step 2: Convert to fraction form
    147,594,991.20/221,486,965.20 = 86,184,031.20/x
  3. Step 3: Cross multiply
    147,594,991.20x = 221,486,965.20 × 86,184,031.20
  4. Step 4: Simplify right side
    147,594,991.20x = 19,088,639,519,190,112
  5. Step 5: Solve for x
    x = 19,088,639,519,190,112/147,594,991.20
  6. Step 6: Final answer
    x = 129,331,214.86

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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.