Home / 1,781,443,079.87-2,672,077,706.60-661,184,715.69

Finding the Fourth Proportional to 1,781,443,079.87, 2,672,077,706.60 and 661,184,715.69

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Solution

The fourth proportional to 1,781,443,079.87, 2,672,077,706.60 and 661,184,715.69 is: 991,744,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,443,079.87 : 2,672,077,706.60 = 661,184,715.69 : x
  2. Step 2: Convert to fraction form
    1,781,443,079.87/2,672,077,706.60 = 661,184,715.69/x
  3. Step 3: Cross multiply
    1,781,443,079.87x = 2,672,077,706.60 × 661,184,715.69
  4. Step 4: Simplify right side
    1,781,443,079.87x = 1,766,736,938,736,602,368
  5. Step 5: Solve for x
    x = 1,766,736,938,736,602,368/1,781,443,079.87
  6. Step 6: Final answer
    x = 991,744,815.60

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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.