Home / 66,245,830.56-99,363,036.96-40,331,421.72

Finding the Fourth Proportional to 66,245,830.56, 99,363,036.96 and 40,331,421.72

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Solution

The fourth proportional to 66,245,830.56, 99,363,036.96 and 40,331,421.72 is: 60,493,656.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,245,830.56 : 99,363,036.96 = 40,331,421.72 : x
  2. Step 2: Convert to fraction form
    66,245,830.56/99,363,036.96 = 40,331,421.72/x
  3. Step 3: Cross multiply
    66,245,830.56x = 99,363,036.96 × 40,331,421.72
  4. Step 4: Simplify right side
    66,245,830.56x = 4,007,452,547,013,706.50
  5. Step 5: Solve for x
    x = 4,007,452,547,013,706.50/66,245,830.56
  6. Step 6: Final answer
    x = 60,493,656.93

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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.