Home / 289,387,564.20-434,081,346.30-73,965,407.40

Finding the Fourth Proportional to 289,387,564.20, 434,081,346.30 and 73,965,407.40

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Solution

The fourth proportional to 289,387,564.20, 434,081,346.30 and 73,965,407.40 is: 110,948,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,387,564.20 : 434,081,346.30 = 73,965,407.40 : x
  2. Step 2: Convert to fraction form
    289,387,564.20/434,081,346.30 = 73,965,407.40/x
  3. Step 3: Cross multiply
    289,387,564.20x = 434,081,346.30 × 73,965,407.40
  4. Step 4: Simplify right side
    289,387,564.20x = 32,107,003,623,819,988
  5. Step 5: Solve for x
    x = 32,107,003,623,819,988/289,387,564.20
  6. Step 6: Final answer
    x = 110,948,111.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.