Home / 66,513,930.60-99,696,246.30-28,168,919.40

Finding the Fourth Proportional to 66,513,930.60, 99,696,246.30 and 28,168,919.40

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Solution

The fourth proportional to 66,513,930.60, 99,696,246.30 and 28,168,919.40 is: 42,221,764.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513,930.60 : 99,696,246.30 = 28,168,919.40 : x
  2. Step 2: Convert to fraction form
    66,513,930.60/99,696,246.30 = 28,168,919.40/x
  3. Step 3: Cross multiply
    66,513,930.60x = 99,696,246.30 × 28,168,919.40
  4. Step 4: Simplify right side
    66,513,930.60x = 2,808,335,526,507,248
  5. Step 5: Solve for x
    x = 2,808,335,526,507,248/66,513,930.60
  6. Step 6: Final answer
    x = 42,221,764.69

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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.