Home / 999,549,201,281.55-1,498,851,164,619.60-387,215,561,810.40

Finding the Fourth Proportional to 999,549,201,281.55, 1,498,851,164,619.60 and 387,215,561,810.40

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Solution

The fourth proportional to 999,549,201,281.55, 1,498,851,164,619.60 and 387,215,561,810.40 is: 580,640,247,657.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,549,201,281.55 : 1,498,851,164,619.60 = 387,215,561,810.40 : x
  2. Step 2: Convert to fraction form
    999,549,201,281.55/1,498,851,164,619.60 = 387,215,561,810.40/x
  3. Step 3: Cross multiply
    999,549,201,281.55x = 1,498,851,164,619.60 × 387,215,561,810.40
  4. Step 4: Simplify right side
    999,549,201,281.55x = 580,378,495,778,350,818,131,968
  5. Step 5: Solve for x
    x = 580,378,495,778,350,818,131,968/999,549,201,281.55
  6. Step 6: Final answer
    x = 580,640,247,657.88

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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.