Home / 66,678,263.76-99,887,981.52-49,138,967.40

Finding the Fourth Proportional to 66,678,263.76, 99,887,981.52 and 49,138,967.40

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Solution

The fourth proportional to 66,678,263.76, 99,887,981.52 and 49,138,967.40 is: 73,613,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,678,263.76 : 99,887,981.52 = 49,138,967.40 : x
  2. Step 2: Convert to fraction form
    66,678,263.76/99,887,981.52 = 49,138,967.40/x
  3. Step 3: Cross multiply
    66,678,263.76x = 99,887,981.52 × 49,138,967.40
  4. Step 4: Simplify right side
    66,678,263.76x = 4,908,392,267,563,082
  5. Step 5: Solve for x
    x = 4,908,392,267,563,082/66,678,263.76
  6. Step 6: Final answer
    x = 73,613,078.55

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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.