Home / 1,005,065,681.48-1,386,970,750.86-559,019,449.88

Finding the Fourth Proportional to 1,005,065,681.48, 1,386,970,750.86 and 559,019,449.88

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Solution

The fourth proportional to 1,005,065,681.48, 1,386,970,750.86 and 559,019,449.88 is: 771,435,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,065,681.48 : 1,386,970,750.86 = 559,019,449.88 : x
  2. Step 2: Convert to fraction form
    1,005,065,681.48/1,386,970,750.86 = 559,019,449.88/x
  3. Step 3: Cross multiply
    1,005,065,681.48x = 1,386,970,750.86 × 559,019,449.88
  4. Step 4: Simplify right side
    1,005,065,681.48x = 775,343,626,145,407,616
  5. Step 5: Solve for x
    x = 775,343,626,145,407,616/1,005,065,681.48
  6. Step 6: Final answer
    x = 771,435,778.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.