Home / 147,684,694.80-221,726,496.60-86,336,720.40

Finding the Fourth Proportional to 147,684,694.80, 221,726,496.60 and 86,336,720.40

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Solution

The fourth proportional to 147,684,694.80, 221,726,496.60 and 86,336,720.40 is: 129,621,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,684,694.80 : 221,726,496.60 = 86,336,720.40 : x
  2. Step 2: Convert to fraction form
    147,684,694.80/221,726,496.60 = 86,336,720.40/x
  3. Step 3: Cross multiply
    147,684,694.80x = 221,726,496.60 × 86,336,720.40
  4. Step 4: Simplify right side
    147,684,694.80x = 19,143,138,542,225,752
  5. Step 5: Solve for x
    x = 19,143,138,542,225,752/147,684,694.80
  6. Step 6: Final answer
    x = 129,621,681.98

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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.