Home / 28,266,155.80-42,399,233.70-18,580,643.60

Finding the Fourth Proportional to 28,266,155.80, 42,399,233.70 and 18,580,643.60

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Solution

The fourth proportional to 28,266,155.80, 42,399,233.70 and 18,580,643.60 is: 27,870,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266,155.80 : 42,399,233.70 = 18,580,643.60 : x
  2. Step 2: Convert to fraction form
    28,266,155.80/42,399,233.70 = 18,580,643.60/x
  3. Step 3: Cross multiply
    28,266,155.80x = 42,399,233.70 × 18,580,643.60
  4. Step 4: Simplify right side
    28,266,155.80x = 787,805,050,292,809.50
  5. Step 5: Solve for x
    x = 787,805,050,292,809.50/28,266,155.80
  6. Step 6: Final answer
    x = 27,870,965.40

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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.