Home / 670,974,585,012.59-925,947,755,139.32-378,003,023,143.61

Finding the Fourth Proportional to 670,974,585,012.59, 925,947,755,139.32 and 378,003,023,143.61

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Solution

The fourth proportional to 670,974,585,012.59, 925,947,755,139.32 and 378,003,023,143.61 is: 521,645,765,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,974,585,012.59 : 925,947,755,139.32 = 378,003,023,143.61 : x
  2. Step 2: Convert to fraction form
    670,974,585,012.59/925,947,755,139.32 = 378,003,023,143.61/x
  3. Step 3: Cross multiply
    670,974,585,012.59x = 925,947,755,139.32 × 378,003,023,143.61
  4. Step 4: Simplify right side
    670,974,585,012.59x = 350,011,050,715,702,095,773,696
  5. Step 5: Solve for x
    x = 350,011,050,715,702,095,773,696/670,974,585,012.59
  6. Step 6: Final answer
    x = 521,645,765,031.67

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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.