Home / 1,245,765,320.59-1,868,833,790.47-458,758,460.72

Finding the Fourth Proportional to 1,245,765,320.59, 1,868,833,790.47 and 458,758,460.72

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Solution

The fourth proportional to 1,245,765,320.59, 1,868,833,790.47 and 458,758,460.72 is: 688,206,116.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,765,320.59 : 1,868,833,790.47 = 458,758,460.72 : x
  2. Step 2: Convert to fraction form
    1,245,765,320.59/1,868,833,790.47 = 458,758,460.72/x
  3. Step 3: Cross multiply
    1,245,765,320.59x = 1,868,833,790.47 × 458,758,460.72
  4. Step 4: Simplify right side
    1,245,765,320.59x = 857,343,313,056,393,344
  5. Step 5: Solve for x
    x = 857,343,313,056,393,344/1,245,765,320.59
  6. Step 6: Final answer
    x = 688,206,116.26

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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.