Home / 66,048,001.70-99,072,002.55-40,219,969.10

Finding the Fourth Proportional to 66,048,001.70, 99,072,002.55 and 40,219,969.10

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Solution

The fourth proportional to 66,048,001.70, 99,072,002.55 and 40,219,969.10 is: 60,329,953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,048,001.70 : 99,072,002.55 = 40,219,969.10 : x
  2. Step 2: Convert to fraction form
    66,048,001.70/99,072,002.55 = 40,219,969.10/x
  3. Step 3: Cross multiply
    66,048,001.70x = 99,072,002.55 × 40,219,969.10
  4. Step 4: Simplify right side
    66,048,001.70x = 3,984,672,881,236,121
  5. Step 5: Solve for x
    x = 3,984,672,881,236,121/66,048,001.70
  6. Step 6: Final answer
    x = 60,329,953.65

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Similar ratio
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1.5x scale

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.