Home / 147,744,009.40-221,616,014.10-86,522,006.20

Finding the Fourth Proportional to 147,744,009.40, 221,616,014.10 and 86,522,006.20

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Solution

The fourth proportional to 147,744,009.40, 221,616,014.10 and 86,522,006.20 is: 129,783,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,744,009.40 : 221,616,014.10 = 86,522,006.20 : x
  2. Step 2: Convert to fraction form
    147,744,009.40/221,616,014.10 = 86,522,006.20/x
  3. Step 3: Cross multiply
    147,744,009.40x = 221,616,014.10 × 86,522,006.20
  4. Step 4: Simplify right side
    147,744,009.40x = 19,174,662,145,979,488
  5. Step 5: Solve for x
    x = 19,174,662,145,979,488/147,744,009.40
  6. Step 6: Final answer
    x = 129,783,009.30

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1.5x scale

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.