Home / 1,319,656,702.60-1,980,760,512.30-665,346,543.40

Finding the Fourth Proportional to 1,319,656,702.60, 1,980,760,512.30 and 665,346,543.40

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Solution

The fourth proportional to 1,319,656,702.60, 1,980,760,512.30 and 665,346,543.40 is: 998,662,877.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,656,702.60 : 1,980,760,512.30 = 665,346,543.40 : x
  2. Step 2: Convert to fraction form
    1,319,656,702.60/1,980,760,512.30 = 665,346,543.40/x
  3. Step 3: Cross multiply
    1,319,656,702.60x = 1,980,760,512.30 × 665,346,543.40
  4. Step 4: Simplify right side
    1,319,656,702.60x = 1,317,892,160,162,018,048
  5. Step 5: Solve for x
    x = 1,317,892,160,162,018,048/1,319,656,702.60
  6. Step 6: Final answer
    x = 998,662,877.68

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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.