Home / 670,974,585,011.59-925,947,755,137.94-378,003,023,142.61

Finding the Fourth Proportional to 670,974,585,011.59, 925,947,755,137.94 and 378,003,023,142.61

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Solution

The fourth proportional to 670,974,585,011.59, 925,947,755,137.94 and 378,003,023,142.61 is: 521,645,765,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,974,585,011.59 : 925,947,755,137.94 = 378,003,023,142.61 : x
  2. Step 2: Convert to fraction form
    670,974,585,011.59/925,947,755,137.94 = 378,003,023,142.61/x
  3. Step 3: Cross multiply
    670,974,585,011.59x = 925,947,755,137.94 × 378,003,023,142.61
  4. Step 4: Simplify right side
    670,974,585,011.59x = 350,011,050,714,254,490,468,352
  5. Step 5: Solve for x
    x = 350,011,050,714,254,490,468,352/670,974,585,011.59
  6. Step 6: Final answer
    x = 521,645,765,030.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.