Home / 440,048,987.20-660,073,480.80-369,021,897.55

Finding the Fourth Proportional to 440,048,987.20, 660,073,480.80 and 369,021,897.55

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Solution

The fourth proportional to 440,048,987.20, 660,073,480.80 and 369,021,897.55 is: 553,532,846.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,048,987.20 : 660,073,480.80 = 369,021,897.55 : x
  2. Step 2: Convert to fraction form
    440,048,987.20/660,073,480.80 = 369,021,897.55/x
  3. Step 3: Cross multiply
    440,048,987.20x = 660,073,480.80 × 369,021,897.55
  4. Step 4: Simplify right side
    440,048,987.20x = 243,581,568,407,249,472
  5. Step 5: Solve for x
    x = 243,581,568,407,249,472/440,048,987.20
  6. Step 6: Final answer
    x = 553,532,846.33

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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.