Home / 128,037,740.88-176,692,068.72-69,300,396.48

Finding the Fourth Proportional to 128,037,740.88, 176,692,068.72 and 69,300,396.48

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Solution

The fourth proportional to 128,037,740.88, 176,692,068.72 and 69,300,396.48 is: 95,634,539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,037,740.88 : 176,692,068.72 = 69,300,396.48 : x
  2. Step 2: Convert to fraction form
    128,037,740.88/176,692,068.72 = 69,300,396.48/x
  3. Step 3: Cross multiply
    128,037,740.88x = 176,692,068.72 × 69,300,396.48
  4. Step 4: Simplify right side
    128,037,740.88x = 12,244,830,417,167,406
  5. Step 5: Solve for x
    x = 12,244,830,417,167,406/128,037,740.88
  6. Step 6: Final answer
    x = 95,634,539.73

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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.