Home / 147,564,005.70-221,346,008.55-45,333,128.10

Finding the Fourth Proportional to 147,564,005.70, 221,346,008.55 and 45,333,128.10

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Solution

The fourth proportional to 147,564,005.70, 221,346,008.55 and 45,333,128.10 is: 67,999,692.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,564,005.70 : 221,346,008.55 = 45,333,128.10 : x
  2. Step 2: Convert to fraction form
    147,564,005.70/221,346,008.55 = 45,333,128.10/x
  3. Step 3: Cross multiply
    147,564,005.70x = 221,346,008.55 × 45,333,128.10
  4. Step 4: Simplify right side
    147,564,005.70x = 10,034,306,960,020,846
  5. Step 5: Solve for x
    x = 10,034,306,960,020,846/147,564,005.70
  6. Step 6: Final answer
    x = 67,999,692.15

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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.