Home / 147,619,732.30-221,429,598.45-86,145,786.70

Finding the Fourth Proportional to 147,619,732.30, 221,429,598.45 and 86,145,786.70

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Solution

The fourth proportional to 147,619,732.30, 221,429,598.45 and 86,145,786.70 is: 129,218,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619,732.30 : 221,429,598.45 = 86,145,786.70 : x
  2. Step 2: Convert to fraction form
    147,619,732.30/221,429,598.45 = 86,145,786.70/x
  3. Step 3: Cross multiply
    147,619,732.30x = 221,429,598.45 × 86,145,786.70
  4. Step 4: Simplify right side
    147,619,732.30x = 19,075,226,957,140,352
  5. Step 5: Solve for x
    x = 19,075,226,957,140,352/147,619,732.30
  6. Step 6: Final answer
    x = 129,218,680.05

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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.