Home / 1,005,065,679.48-1,386,970,748.10-559,019,447.88

Finding the Fourth Proportional to 1,005,065,679.48, 1,386,970,748.10 and 559,019,447.88

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Solution

The fourth proportional to 1,005,065,679.48, 1,386,970,748.10 and 559,019,447.88 is: 771,435,775.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,065,679.48 : 1,386,970,748.10 = 559,019,447.88 : x
  2. Step 2: Convert to fraction form
    1,005,065,679.48/1,386,970,748.10 = 559,019,447.88/x
  3. Step 3: Cross multiply
    1,005,065,679.48x = 1,386,970,748.10 × 559,019,447.88
  4. Step 4: Simplify right side
    1,005,065,679.48x = 775,343,621,828,572,544
  5. Step 5: Solve for x
    x = 775,343,621,828,572,544/1,005,065,679.48
  6. Step 6: Final answer
    x = 771,435,775.45

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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.