Home / 891,422,278.60-1,337,133,417.90-687,348,934.60

Finding the Fourth Proportional to 891,422,278.60, 1,337,133,417.90 and 687,348,934.60

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Solution

The fourth proportional to 891,422,278.60, 1,337,133,417.90 and 687,348,934.60 is: 1,031,023,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,422,278.60 : 1,337,133,417.90 = 687,348,934.60 : x
  2. Step 2: Convert to fraction form
    891,422,278.60/1,337,133,417.90 = 687,348,934.60/x
  3. Step 3: Cross multiply
    891,422,278.60x = 1,337,133,417.90 × 687,348,934.60
  4. Step 4: Simplify right side
    891,422,278.60x = 919,077,230,211,621,632
  5. Step 5: Solve for x
    x = 919,077,230,211,621,632/891,422,278.60
  6. Step 6: Final answer
    x = 1,031,023,401.90

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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.