Home / 28,342,437.80-42,513,656.70-18,256,447.40

Finding the Fourth Proportional to 28,342,437.80, 42,513,656.70 and 18,256,447.40

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Solution

The fourth proportional to 28,342,437.80, 42,513,656.70 and 18,256,447.40 is: 27,384,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,437.80 : 42,513,656.70 = 18,256,447.40 : x
  2. Step 2: Convert to fraction form
    28,342,437.80/42,513,656.70 = 18,256,447.40/x
  3. Step 3: Cross multiply
    28,342,437.80x = 42,513,656.70 × 18,256,447.40
  4. Step 4: Simplify right side
    28,342,437.80x = 776,148,337,325,207.62
  5. Step 5: Solve for x
    x = 776,148,337,325,207.62/28,342,437.80
  6. Step 6: Final answer
    x = 27,384,671.10

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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.