Home / 688,748,707,812.90-1,033,123,061,719.40-670,152,524,340.90

Finding the Fourth Proportional to 688,748,707,812.90, 1,033,123,061,719.40 and 670,152,524,340.90

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Solution

The fourth proportional to 688,748,707,812.90, 1,033,123,061,719.40 and 670,152,524,340.90 is: 1,005,228,786,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,748,707,812.90 : 1,033,123,061,719.40 = 670,152,524,340.90 : x
  2. Step 2: Convert to fraction form
    688,748,707,812.90/1,033,123,061,719.40 = 670,152,524,340.90/x
  3. Step 3: Cross multiply
    688,748,707,812.90x = 1,033,123,061,719.40 × 670,152,524,340.90
  4. Step 4: Simplify right side
    688,748,707,812.90x = 692,350,027,766,055,397,490,688
  5. Step 5: Solve for x
    x = 692,350,027,766,055,397,490,688/688,748,707,812.90
  6. Step 6: Final answer
    x = 1,005,228,786,511.40

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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.