Home / 145,155,210.60-217,751,478.30-72,409,175.40

Finding the Fourth Proportional to 145,155,210.60, 217,751,478.30 and 72,409,175.40

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Solution

The fourth proportional to 145,155,210.60, 217,751,478.30 and 72,409,175.40 is: 108,623,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,155,210.60 : 217,751,478.30 = 72,409,175.40 : x
  2. Step 2: Convert to fraction form
    145,155,210.60/217,751,478.30 = 72,409,175.40/x
  3. Step 3: Cross multiply
    145,155,210.60x = 217,751,478.30 × 72,409,175.40
  4. Step 4: Simplify right side
    145,155,210.60x = 15,767,204,985,833,996
  5. Step 5: Solve for x
    x = 15,767,204,985,833,996/145,155,210.60
  6. Step 6: Final answer
    x = 108,623,072.65

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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.