Home / 1,438,939,616.72-2,158,615,320.64-443,044,909.12

Finding the Fourth Proportional to 1,438,939,616.72, 2,158,615,320.64 and 443,044,909.12

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Solution

The fourth proportional to 1,438,939,616.72, 2,158,615,320.64 and 443,044,909.12 is: 664,630,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,939,616.72 : 2,158,615,320.64 = 443,044,909.12 : x
  2. Step 2: Convert to fraction form
    1,438,939,616.72/2,158,615,320.64 = 443,044,909.12/x
  3. Step 3: Cross multiply
    1,438,939,616.72x = 2,158,615,320.64 × 443,044,909.12
  4. Step 4: Simplify right side
    1,438,939,616.72x = 956,363,528,557,988,352
  5. Step 5: Solve for x
    x = 956,363,528,557,988,352/1,438,939,616.72
  6. Step 6: Final answer
    x = 664,630,758.26

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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.