Home / 665,837,781.58-918,818,753.15-364,422,479.29

Finding the Fourth Proportional to 665,837,781.58, 918,818,753.15 and 364,422,479.29

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Solution

The fourth proportional to 665,837,781.58, 918,818,753.15 and 364,422,479.29 is: 502,882,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,837,781.58 : 918,818,753.15 = 364,422,479.29 : x
  2. Step 2: Convert to fraction form
    665,837,781.58/918,818,753.15 = 364,422,479.29/x
  3. Step 3: Cross multiply
    665,837,781.58x = 918,818,753.15 × 364,422,479.29
  4. Step 4: Simplify right side
    665,837,781.58x = 334,838,208,044,578,944
  5. Step 5: Solve for x
    x = 334,838,208,044,578,944/665,837,781.58
  6. Step 6: Final answer
    x = 502,882,559.85

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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.