Home / 891,121,901.36-1,336,681,014.60-502,768,438.16

Finding the Fourth Proportional to 891,121,901.36, 1,336,681,014.60 and 502,768,438.16

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Solution

The fourth proportional to 891,121,901.36, 1,336,681,014.60 and 502,768,438.16 is: 754,151,620.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,121,901.36 : 1,336,681,014.60 = 502,768,438.16 : x
  2. Step 2: Convert to fraction form
    891,121,901.36/1,336,681,014.60 = 502,768,438.16/x
  3. Step 3: Cross multiply
    891,121,901.36x = 1,336,681,014.60 × 502,768,438.16
  4. Step 4: Simplify right side
    891,121,901.36x = 672,041,026,028,566,144
  5. Step 5: Solve for x
    x = 672,041,026,028,566,144/891,121,901.36
  6. Step 6: Final answer
    x = 754,151,620.56

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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.