Home / 147,096,686.40-220,309,106.40-86,630,510.40

Finding the Fourth Proportional to 147,096,686.40, 220,309,106.40 and 86,630,510.40

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Solution

The fourth proportional to 147,096,686.40, 220,309,106.40 and 86,630,510.40 is: 129,747,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,096,686.40 : 220,309,106.40 = 86,630,510.40 : x
  2. Step 2: Convert to fraction form
    147,096,686.40/220,309,106.40 = 86,630,510.40/x
  3. Step 3: Cross multiply
    147,096,686.40x = 220,309,106.40 × 86,630,510.40
  4. Step 4: Simplify right side
    147,096,686.40x = 19,085,490,333,199,908
  5. Step 5: Solve for x
    x = 19,085,490,333,199,908/147,096,686.40
  6. Step 6: Final answer
    x = 129,747,928.39

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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.