Home / 902,103,121.20-1,353,154,681.80-687,112,273.20

Finding the Fourth Proportional to 902,103,121.20, 1,353,154,681.80 and 687,112,273.20

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Solution

The fourth proportional to 902,103,121.20, 1,353,154,681.80 and 687,112,273.20 is: 1,030,668,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,103,121.20 : 1,353,154,681.80 = 687,112,273.20 : x
  2. Step 2: Convert to fraction form
    902,103,121.20/1,353,154,681.80 = 687,112,273.20/x
  3. Step 3: Cross multiply
    902,103,121.20x = 1,353,154,681.80 × 687,112,273.20
  4. Step 4: Simplify right side
    902,103,121.20x = 929,769,189,402,820,736
  5. Step 5: Solve for x
    x = 929,769,189,402,820,736/902,103,121.20
  6. Step 6: Final answer
    x = 1,030,668,409.80

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1.5x scale

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.