Home / 1,191,067,405.72-1,784,966,661.86-753,584,925.40

Finding the Fourth Proportional to 1,191,067,405.72, 1,784,966,661.86 and 753,584,925.40

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Solution

The fourth proportional to 1,191,067,405.72, 1,784,966,661.86 and 753,584,925.40 is: 1,129,343,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,067,405.72 : 1,784,966,661.86 = 753,584,925.40 : x
  2. Step 2: Convert to fraction form
    1,191,067,405.72/1,784,966,661.86 = 753,584,925.40/x
  3. Step 3: Cross multiply
    1,191,067,405.72x = 1,784,966,661.86 × 753,584,925.40
  4. Step 4: Simplify right side
    1,191,067,405.72x = 1,345,123,968,719,255,040
  5. Step 5: Solve for x
    x = 1,345,123,968,719,255,040/1,191,067,405.72
  6. Step 6: Final answer
    x = 1,129,343,278.36

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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.