Home / 11,191,681.80-16,787,522.70-7,790,459.40

Finding the Fourth Proportional to 11,191,681.80, 16,787,522.70 and 7,790,459.40

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Solution

The fourth proportional to 11,191,681.80, 16,787,522.70 and 7,790,459.40 is: 11,685,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191,681.80 : 16,787,522.70 = 7,790,459.40 : x
  2. Step 2: Convert to fraction form
    11,191,681.80/16,787,522.70 = 7,790,459.40/x
  3. Step 3: Cross multiply
    11,191,681.80x = 16,787,522.70 × 7,790,459.40
  4. Step 4: Simplify right side
    11,191,681.80x = 130,782,514,020,928.38
  5. Step 5: Solve for x
    x = 130,782,514,020,928.38/11,191,681.80
  6. Step 6: Final answer
    x = 11,685,689.10

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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.