Home / 143,653,526.80-215,480,290.20-86,257,898.80

Finding the Fourth Proportional to 143,653,526.80, 215,480,290.20 and 86,257,898.80

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Solution

The fourth proportional to 143,653,526.80, 215,480,290.20 and 86,257,898.80 is: 129,386,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,653,526.80 : 215,480,290.20 = 86,257,898.80 : x
  2. Step 2: Convert to fraction form
    143,653,526.80/215,480,290.20 = 86,257,898.80/x
  3. Step 3: Cross multiply
    143,653,526.80x = 215,480,290.20 × 86,257,898.80
  4. Step 4: Simplify right side
    143,653,526.80x = 18,586,877,065,466,232
  5. Step 5: Solve for x
    x = 18,586,877,065,466,232/143,653,526.80
  6. Step 6: Final answer
    x = 129,386,848.20

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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.