Home / 78,716,279,603.04-108,703,489,260.72-74,427,866,888.58

Finding the Fourth Proportional to 78,716,279,603.04, 108,703,489,260.72 and 74,427,866,888.58

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Solution

The fourth proportional to 78,716,279,603.04, 108,703,489,260.72 and 74,427,866,888.58 is: 102,781,392,487.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,716,279,603.04 : 108,703,489,260.72 = 74,427,866,888.58 : x
  2. Step 2: Convert to fraction form
    78,716,279,603.04/108,703,489,260.72 = 74,427,866,888.58/x
  3. Step 3: Cross multiply
    78,716,279,603.04x = 108,703,489,260.72 × 74,427,866,888.58
  4. Step 4: Simplify right side
    78,716,279,603.04x = 8,090,568,829,021,053,779,968
  5. Step 5: Solve for x
    x = 8,090,568,829,021,053,779,968/78,716,279,603.04
  6. Step 6: Final answer
    x = 102,781,392,487.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.