Home / 128,460,776.50-177,276,066.38-69,723,463.08

Finding the Fourth Proportional to 128,460,776.50, 177,276,066.38 and 69,723,463.08

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Solution

The fourth proportional to 128,460,776.50, 177,276,066.38 and 69,723,463.08 is: 96,218,484.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,460,776.50 : 177,276,066.38 = 69,723,463.08 : x
  2. Step 2: Convert to fraction form
    128,460,776.50/177,276,066.38 = 69,723,463.08/x
  3. Step 3: Cross multiply
    128,460,776.50x = 177,276,066.38 × 69,723,463.08
  4. Step 4: Simplify right side
    128,460,776.50x = 12,360,301,269,213,558
  5. Step 5: Solve for x
    x = 12,360,301,269,213,558/128,460,776.50
  6. Step 6: Final answer
    x = 96,218,484.79

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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.