Home / 978,768,814.59-1,350,730,195.20-602,642,390.85

Finding the Fourth Proportional to 978,768,814.59, 1,350,730,195.20 and 602,642,390.85

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Solution

The fourth proportional to 978,768,814.59, 1,350,730,195.20 and 602,642,390.85 is: 831,664,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,768,814.59 : 1,350,730,195.20 = 602,642,390.85 : x
  2. Step 2: Convert to fraction form
    978,768,814.59/1,350,730,195.20 = 602,642,390.85/x
  3. Step 3: Cross multiply
    978,768,814.59x = 1,350,730,195.20 × 602,642,390.85
  4. Step 4: Simplify right side
    978,768,814.59x = 814,007,274,228,615,296
  5. Step 5: Solve for x
    x = 814,007,274,228,615,296/978,768,814.59
  6. Step 6: Final answer
    x = 831,664,497.37

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1.5x scale

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.