Home / 1,872,278,139.40-2,808,865,106.70-902,131,937.80

Finding the Fourth Proportional to 1,872,278,139.40, 2,808,865,106.70 and 902,131,937.80

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Solution

The fourth proportional to 1,872,278,139.40, 2,808,865,106.70 and 902,131,937.80 is: 1,353,413,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872,278,139.40 : 2,808,865,106.70 = 902,131,937.80 : x
  2. Step 2: Convert to fraction form
    1,872,278,139.40/2,808,865,106.70 = 902,131,937.80/x
  3. Step 3: Cross multiply
    1,872,278,139.40x = 2,808,865,106.70 × 902,131,937.80
  4. Step 4: Simplify right side
    1,872,278,139.40x = 2,533,966,921,726,074,368
  5. Step 5: Solve for x
    x = 2,533,966,921,726,074,368/1,872,278,139.40
  6. Step 6: Final answer
    x = 1,353,413,720.11

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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.