Home / 1,245,765,348.96-1,868,833,833.06-458,758,489.08

Finding the Fourth Proportional to 1,245,765,348.96, 1,868,833,833.06 and 458,758,489.08

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Solution

The fourth proportional to 1,245,765,348.96, 1,868,833,833.06 and 458,758,489.08 is: 688,206,158.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,765,348.96 : 1,868,833,833.06 = 458,758,489.08 : x
  2. Step 2: Convert to fraction form
    1,245,765,348.96/1,868,833,833.06 = 458,758,489.08/x
  3. Step 3: Cross multiply
    1,245,765,348.96x = 1,868,833,833.06 × 458,758,489.08
  4. Step 4: Simplify right side
    1,245,765,348.96x = 857,343,385,596,190,464
  5. Step 5: Solve for x
    x = 857,343,385,596,190,464/1,245,765,348.96
  6. Step 6: Final answer
    x = 688,206,158.82

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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.