Home / 935,085,029.12-1,290,418,851.84-517,414,918.40

Finding the Fourth Proportional to 935,085,029.12, 1,290,418,851.84 and 517,414,918.40

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Solution

The fourth proportional to 935,085,029.12, 1,290,418,851.84 and 517,414,918.40 is: 714,033,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,085,029.12 : 1,290,418,851.84 = 517,414,918.40 : x
  2. Step 2: Convert to fraction form
    935,085,029.12/1,290,418,851.84 = 517,414,918.40/x
  3. Step 3: Cross multiply
    935,085,029.12x = 1,290,418,851.84 × 517,414,918.40
  4. Step 4: Simplify right side
    935,085,029.12x = 667,681,964,926,615,168
  5. Step 5: Solve for x
    x = 667,681,964,926,615,168/935,085,029.12
  6. Step 6: Final answer
    x = 714,033,423.84

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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.