Home / 78,345,206.27-117,364,571.91-64,531,995.20

Finding the Fourth Proportional to 78,345,206.27, 117,364,571.91 and 64,531,995.20

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Solution

The fourth proportional to 78,345,206.27, 117,364,571.91 and 64,531,995.20 is: 96,671,772.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345,206.27 : 117,364,571.91 = 64,531,995.20 : x
  2. Step 2: Convert to fraction form
    78,345,206.27/117,364,571.91 = 64,531,995.20/x
  3. Step 3: Cross multiply
    78,345,206.27x = 117,364,571.91 × 64,531,995.20
  4. Step 4: Simplify right side
    78,345,206.27x = 7,573,769,990,559,352
  5. Step 5: Solve for x
    x = 7,573,769,990,559,352/78,345,206.27
  6. Step 6: Final answer
    x = 96,671,772.93

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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.