Home / 145,655,187.60-218,482,781.40-138,936,723.60

Finding the Fourth Proportional to 145,655,187.60, 218,482,781.40 and 138,936,723.60

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Solution

The fourth proportional to 145,655,187.60, 218,482,781.40 and 138,936,723.60 is: 208,405,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,187.60 : 218,482,781.40 = 138,936,723.60 : x
  2. Step 2: Convert to fraction form
    145,655,187.60/218,482,781.40 = 138,936,723.60/x
  3. Step 3: Cross multiply
    145,655,187.60x = 218,482,781.40 × 138,936,723.60
  4. Step 4: Simplify right side
    145,655,187.60x = 30,355,281,810,731,020
  5. Step 5: Solve for x
    x = 30,355,281,810,731,020/145,655,187.60
  6. Step 6: Final answer
    x = 208,405,085.40

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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.