Home / 1,291,121,431.88-1,937,420,155.35-700,959,655.76

Finding the Fourth Proportional to 1,291,121,431.88, 1,937,420,155.35 and 700,959,655.76

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Solution

The fourth proportional to 1,291,121,431.88, 1,937,420,155.35 and 700,959,655.76 is: 1,051,840,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,121,431.88 : 1,937,420,155.35 = 700,959,655.76 : x
  2. Step 2: Convert to fraction form
    1,291,121,431.88/1,937,420,155.35 = 700,959,655.76/x
  3. Step 3: Cross multiply
    1,291,121,431.88x = 1,937,420,155.35 × 700,959,655.76
  4. Step 4: Simplify right side
    1,291,121,431.88x = 1,358,053,365,146,934,528
  5. Step 5: Solve for x
    x = 1,358,053,365,146,934,528/1,291,121,431.88
  6. Step 6: Final answer
    x = 1,051,840,153.54

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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.