Home / 935,085,057.12-1,290,418,890.48-517,414,946.40

Finding the Fourth Proportional to 935,085,057.12, 1,290,418,890.48 and 517,414,946.40

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Solution

The fourth proportional to 935,085,057.12, 1,290,418,890.48 and 517,414,946.40 is: 714,033,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,085,057.12 : 1,290,418,890.48 = 517,414,946.40 : x
  2. Step 2: Convert to fraction form
    935,085,057.12/1,290,418,890.48 = 517,414,946.40/x
  3. Step 3: Cross multiply
    935,085,057.12x = 1,290,418,890.48 × 517,414,946.40
  4. Step 4: Simplify right side
    935,085,057.12x = 667,682,021,051,256,704
  5. Step 5: Solve for x
    x = 667,682,021,051,256,704/935,085,057.12
  6. Step 6: Final answer
    x = 714,033,462.48

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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.