Home / 289,989,081.54-400,193,430.48-157,838,637.42

Finding the Fourth Proportional to 289,989,081.54, 400,193,430.48 and 157,838,637.42

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Solution

The fourth proportional to 289,989,081.54, 400,193,430.48 and 157,838,637.42 is: 217,821,945.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,989,081.54 : 400,193,430.48 = 157,838,637.42 : x
  2. Step 2: Convert to fraction form
    289,989,081.54/400,193,430.48 = 157,838,637.42/x
  3. Step 3: Cross multiply
    289,989,081.54x = 400,193,430.48 × 157,838,637.42
  4. Step 4: Simplify right side
    289,989,081.54x = 63,165,985,771,398,696
  5. Step 5: Solve for x
    x = 63,165,985,771,398,696/289,989,081.54
  6. Step 6: Final answer
    x = 217,821,945.01

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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.