Home / 803,901,445.20-1,205,852,167.80-343,886,115.60

Finding the Fourth Proportional to 803,901,445.20, 1,205,852,167.80 and 343,886,115.60

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Solution

The fourth proportional to 803,901,445.20, 1,205,852,167.80 and 343,886,115.60 is: 515,829,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,901,445.20 : 1,205,852,167.80 = 343,886,115.60 : x
  2. Step 2: Convert to fraction form
    803,901,445.20/1,205,852,167.80 = 343,886,115.60/x
  3. Step 3: Cross multiply
    803,901,445.20x = 1,205,852,167.80 × 343,886,115.60
  4. Step 4: Simplify right side
    803,901,445.20x = 414,675,817,972,581,440
  5. Step 5: Solve for x
    x = 414,675,817,972,581,440/803,901,445.20
  6. Step 6: Final answer
    x = 515,829,173.40

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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.