Home / 12,589,342,547.27-17,374,816,158.80-7,165,196,958.21

Finding the Fourth Proportional to 12,589,342,547.27, 17,374,816,158.80 and 7,165,196,958.21

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Solution

The fourth proportional to 12,589,342,547.27, 17,374,816,158.80 and 7,165,196,958.21 is: 9,888,838,866.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,342,547.27 : 17,374,816,158.80 = 7,165,196,958.21 : x
  2. Step 2: Convert to fraction form
    12,589,342,547.27/17,374,816,158.80 = 7,165,196,958.21/x
  3. Step 3: Cross multiply
    12,589,342,547.27x = 17,374,816,158.80 × 7,165,196,958.21
  4. Step 4: Simplify right side
    12,589,342,547.27x = 124,493,979,890,389,843,968
  5. Step 5: Solve for x
    x = 124,493,979,890,389,843,968/12,589,342,547.27
  6. Step 6: Final answer
    x = 9,888,838,866.92

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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.