Home / 528,409,871.40-792,614,807.10-140,292,604.20

Finding the Fourth Proportional to 528,409,871.40, 792,614,807.10 and 140,292,604.20

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Solution

The fourth proportional to 528,409,871.40, 792,614,807.10 and 140,292,604.20 is: 210,438,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,409,871.40 : 792,614,807.10 = 140,292,604.20 : x
  2. Step 2: Convert to fraction form
    528,409,871.40/792,614,807.10 = 140,292,604.20/x
  3. Step 3: Cross multiply
    528,409,871.40x = 792,614,807.10 × 140,292,604.20
  4. Step 4: Simplify right side
    528,409,871.40x = 111,197,995,415,539,648
  5. Step 5: Solve for x
    x = 111,197,995,415,539,648/528,409,871.40
  6. Step 6: Final answer
    x = 210,438,906.30

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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.