Home / 142,596,620.40-213,894,930.60-66,069,116.40

Finding the Fourth Proportional to 142,596,620.40, 213,894,930.60 and 66,069,116.40

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Solution

The fourth proportional to 142,596,620.40, 213,894,930.60 and 66,069,116.40 is: 99,103,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,596,620.40 : 213,894,930.60 = 66,069,116.40 : x
  2. Step 2: Convert to fraction form
    142,596,620.40/213,894,930.60 = 66,069,116.40/x
  3. Step 3: Cross multiply
    142,596,620.40x = 213,894,930.60 × 66,069,116.40
  4. Step 4: Simplify right side
    142,596,620.40x = 14,131,849,067,181,322
  5. Step 5: Solve for x
    x = 14,131,849,067,181,322/142,596,620.40
  6. Step 6: Final answer
    x = 99,103,674.60

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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.