Home / 1,990,658,934.30-2,985,988,401.45-610,462,479.90

Finding the Fourth Proportional to 1,990,658,934.30, 2,985,988,401.45 and 610,462,479.90

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Solution

The fourth proportional to 1,990,658,934.30, 2,985,988,401.45 and 610,462,479.90 is: 915,693,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,658,934.30 : 2,985,988,401.45 = 610,462,479.90 : x
  2. Step 2: Convert to fraction form
    1,990,658,934.30/2,985,988,401.45 = 610,462,479.90/x
  3. Step 3: Cross multiply
    1,990,658,934.30x = 2,985,988,401.45 × 610,462,479.90
  4. Step 4: Simplify right side
    1,990,658,934.30x = 1,822,833,884,501,803,520
  5. Step 5: Solve for x
    x = 1,822,833,884,501,803,520/1,990,658,934.30
  6. Step 6: Final answer
    x = 915,693,719.85

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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.