Home / 145,154,231.60-217,750,009.80-72,408,196.40

Finding the Fourth Proportional to 145,154,231.60, 217,750,009.80 and 72,408,196.40

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Solution

The fourth proportional to 145,154,231.60, 217,750,009.80 and 72,408,196.40 is: 108,621,604.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,154,231.60 : 217,750,009.80 = 72,408,196.40 : x
  2. Step 2: Convert to fraction form
    145,154,231.60/217,750,009.80 = 72,408,196.40/x
  3. Step 3: Cross multiply
    145,154,231.60x = 217,750,009.80 × 72,408,196.40
  4. Step 4: Simplify right side
    145,154,231.60x = 15,766,885,475,700,326
  5. Step 5: Solve for x
    x = 15,766,885,475,700,326/145,154,231.60
  6. Step 6: Final answer
    x = 108,621,604.08

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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.