Home / 78,247,117,479.83-117,377,437,247.17-21,586,980,489.93

Finding the Fourth Proportional to 78,247,117,479.83, 117,377,437,247.17 and 21,586,980,489.93

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Solution

The fourth proportional to 78,247,117,479.83, 117,377,437,247.17 and 21,586,980,489.93 is: 32,382,335,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,247,117,479.83 : 117,377,437,247.17 = 21,586,980,489.93 : x
  2. Step 2: Convert to fraction form
    78,247,117,479.83/117,377,437,247.17 = 21,586,980,489.93/x
  3. Step 3: Cross multiply
    78,247,117,479.83x = 117,377,437,247.17 × 21,586,980,489.93
  4. Step 4: Simplify right side
    78,247,117,479.83x = 2,533,824,447,812,641,751,040
  5. Step 5: Solve for x
    x = 2,533,824,447,812,641,751,040/78,247,117,479.83
  6. Step 6: Final answer
    x = 32,382,335,981.46

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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.