Home / 21,215,238,298.92-31,814,101,948.86-7,241,985,685.80

Finding the Fourth Proportional to 21,215,238,298.92, 31,814,101,948.86 and 7,241,985,685.80

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Solution

The fourth proportional to 21,215,238,298.92, 31,814,101,948.86 and 7,241,985,685.80 is: 10,859,989,771.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215,238,298.92 : 31,814,101,948.86 = 7,241,985,685.80 : x
  2. Step 2: Convert to fraction form
    21,215,238,298.92/31,814,101,948.86 = 7,241,985,685.80/x
  3. Step 3: Cross multiply
    21,215,238,298.92x = 31,814,101,948.86 × 7,241,985,685.80
  4. Step 4: Simplify right side
    21,215,238,298.92x = 230,397,270,920,226,013,184
  5. Step 5: Solve for x
    x = 230,397,270,920,226,013,184/21,215,238,298.92
  6. Step 6: Final answer
    x = 10,859,989,771.22

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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.