Home / 87,128,438,467.20-130,692,657,700.80-87,128,438,467.20

Finding the Fourth Proportional to 87,128,438,467.20, 130,692,657,700.80 and 87,128,438,467.20

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Solution

The fourth proportional to 87,128,438,467.20, 130,692,657,700.80 and 87,128,438,467.20 is: 130,692,657,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,128,438,467.20 : 130,692,657,700.80 = 87,128,438,467.20 : x
  2. Step 2: Convert to fraction form
    87,128,438,467.20/130,692,657,700.80 = 87,128,438,467.20/x
  3. Step 3: Cross multiply
    87,128,438,467.20x = 130,692,657,700.80 × 87,128,438,467.20
  4. Step 4: Simplify right side
    87,128,438,467.20x = 11,387,047,184,598,984,294,400
  5. Step 5: Solve for x
    x = 11,387,047,184,598,984,294,400/87,128,438,467.20
  6. Step 6: Final answer
    x = 130,692,657,700.80

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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.