Home / 74,920,088,338.15-112,386,739,035.02-21,137,694,570.32

Finding the Fourth Proportional to 74,920,088,338.15, 112,386,739,035.02 and 21,137,694,570.32

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Solution

The fourth proportional to 74,920,088,338.15, 112,386,739,035.02 and 21,137,694,570.32 is: 31,708,405,798.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,920,088,338.15 : 112,386,739,035.02 = 21,137,694,570.32 : x
  2. Step 2: Convert to fraction form
    74,920,088,338.15/112,386,739,035.02 = 21,137,694,570.32/x
  3. Step 3: Cross multiply
    74,920,088,338.15x = 112,386,739,035.02 × 21,137,694,570.32
  4. Step 4: Simplify right side
    74,920,088,338.15x = 2,375,596,563,475,951,255,552
  5. Step 5: Solve for x
    x = 2,375,596,563,475,951,255,552/74,920,088,338.15
  6. Step 6: Final answer
    x = 31,708,405,798.37

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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.