Home / 128,136,391.76-176,827,338.79-69,397,712.03

Finding the Fourth Proportional to 128,136,391.76, 176,827,338.79 and 69,397,712.03

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Solution

The fourth proportional to 128,136,391.76, 176,827,338.79 and 69,397,712.03 is: 95,768,365.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,136,391.76 : 176,827,338.79 = 69,397,712.03 : x
  2. Step 2: Convert to fraction form
    128,136,391.76/176,827,338.79 = 69,397,712.03/x
  3. Step 3: Cross multiply
    128,136,391.76x = 176,827,338.79 × 69,397,712.03
  4. Step 4: Simplify right side
    128,136,391.76x = 12,271,412,736,648,242
  5. Step 5: Solve for x
    x = 12,271,412,736,648,242/128,136,391.76
  6. Step 6: Final answer
    x = 95,768,365.00

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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.