Home / 1,173,581,761.40-1,760,372,642.10-355,587,774.20

Finding the Fourth Proportional to 1,173,581,761.40, 1,760,372,642.10 and 355,587,774.20

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Solution

The fourth proportional to 1,173,581,761.40, 1,760,372,642.10 and 355,587,774.20 is: 533,381,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,581,761.40 : 1,760,372,642.10 = 355,587,774.20 : x
  2. Step 2: Convert to fraction form
    1,173,581,761.40/1,760,372,642.10 = 355,587,774.20/x
  3. Step 3: Cross multiply
    1,173,581,761.40x = 1,760,372,642.10 × 355,587,774.20
  4. Step 4: Simplify right side
    1,173,581,761.40x = 625,966,989,566,912,128
  5. Step 5: Solve for x
    x = 625,966,989,566,912,128/1,173,581,761.40
  6. Step 6: Final answer
    x = 533,381,661.30

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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.