Home / 688,077,027.60-1,032,513,672.60-257,299,069.20

Finding the Fourth Proportional to 688,077,027.60, 1,032,513,672.60 and 257,299,069.20

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Solution

The fourth proportional to 688,077,027.60, 1,032,513,672.60 and 257,299,069.20 is: 386,097,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,077,027.60 : 1,032,513,672.60 = 257,299,069.20 : x
  2. Step 2: Convert to fraction form
    688,077,027.60/1,032,513,672.60 = 257,299,069.20/x
  3. Step 3: Cross multiply
    688,077,027.60x = 1,032,513,672.60 × 257,299,069.20
  4. Step 4: Simplify right side
    688,077,027.60x = 265,664,806,896,253,536
  5. Step 5: Solve for x
    x = 265,664,806,896,253,536/688,077,027.60
  6. Step 6: Final answer
    x = 386,097,480.72

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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.