Home / 1,121,931,703.20-1,682,926,423.20-531,583,420.80

Finding the Fourth Proportional to 1,121,931,703.20, 1,682,926,423.20 and 531,583,420.80

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Solution

The fourth proportional to 1,121,931,703.20, 1,682,926,423.20 and 531,583,420.80 is: 797,388,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,931,703.20 : 1,682,926,423.20 = 531,583,420.80 : x
  2. Step 2: Convert to fraction form
    1,121,931,703.20/1,682,926,423.20 = 531,583,420.80/x
  3. Step 3: Cross multiply
    1,121,931,703.20x = 1,682,926,423.20 × 531,583,420.80
  4. Step 4: Simplify right side
    1,121,931,703.20x = 894,615,784,999,364,480
  5. Step 5: Solve for x
    x = 894,615,784,999,364,480/1,121,931,703.20
  6. Step 6: Final answer
    x = 797,388,809.36

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Double scale
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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.