Home / 702,079,488,820.80-1,053,119,233,231.20-688,148,081,870.40

Finding the Fourth Proportional to 702,079,488,820.80, 1,053,119,233,231.20 and 688,148,081,870.40

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Solution

The fourth proportional to 702,079,488,820.80, 1,053,119,233,231.20 and 688,148,081,870.40 is: 1,032,222,122,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,079,488,820.80 : 1,053,119,233,231.20 = 688,148,081,870.40 : x
  2. Step 2: Convert to fraction form
    702,079,488,820.80/1,053,119,233,231.20 = 688,148,081,870.40/x
  3. Step 3: Cross multiply
    702,079,488,820.80x = 1,053,119,233,231.20 × 688,148,081,870.40
  4. Step 4: Simplify right side
    702,079,488,820.80x = 724,701,980,328,876,631,392,256
  5. Step 5: Solve for x
    x = 724,701,980,328,876,631,392,256/702,079,488,820.80
  6. Step 6: Final answer
    x = 1,032,222,122,805.60

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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.