Home / 128,037,742.88-176,692,071.48-69,300,398.48

Finding the Fourth Proportional to 128,037,742.88, 176,692,071.48 and 69,300,398.48

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Solution

The fourth proportional to 128,037,742.88, 176,692,071.48 and 69,300,398.48 is: 95,634,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,037,742.88 : 176,692,071.48 = 69,300,398.48 : x
  2. Step 2: Convert to fraction form
    128,037,742.88/176,692,071.48 = 69,300,398.48/x
  3. Step 3: Cross multiply
    128,037,742.88x = 176,692,071.48 × 69,300,398.48
  4. Step 4: Simplify right side
    128,037,742.88x = 12,244,830,961,820,644
  5. Step 5: Solve for x
    x = 12,244,830,961,820,644/128,037,742.88
  6. Step 6: Final answer
    x = 95,634,542.49

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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.