Home / 918,660,922.68-1,267,754,078.52-522,186,341.16

Finding the Fourth Proportional to 918,660,922.68, 1,267,754,078.52 and 522,186,341.16

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Solution

The fourth proportional to 918,660,922.68, 1,267,754,078.52 and 522,186,341.16 is: 720,618,290.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,660,922.68 : 1,267,754,078.52 = 522,186,341.16 : x
  2. Step 2: Convert to fraction form
    918,660,922.68/1,267,754,078.52 = 522,186,341.16/x
  3. Step 3: Cross multiply
    918,660,922.68x = 1,267,754,078.52 × 522,186,341.16
  4. Step 4: Simplify right side
    918,660,922.68x = 662,003,863,753,026,176
  5. Step 5: Solve for x
    x = 662,003,863,753,026,176/918,660,922.68
  6. Step 6: Final answer
    x = 720,618,290.61

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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.