Home / 485,053,085.40-727,685,916.30-239,527,343.40

Finding the Fourth Proportional to 485,053,085.40, 727,685,916.30 and 239,527,343.40

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Solution

The fourth proportional to 485,053,085.40, 727,685,916.30 and 239,527,343.40 is: 359,343,501.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,053,085.40 : 727,685,916.30 = 239,527,343.40 : x
  2. Step 2: Convert to fraction form
    485,053,085.40/727,685,916.30 = 239,527,343.40/x
  3. Step 3: Cross multiply
    485,053,085.40x = 727,685,916.30 × 239,527,343.40
  4. Step 4: Simplify right side
    485,053,085.40x = 174,300,674,360,933,760
  5. Step 5: Solve for x
    x = 174,300,674,360,933,760/485,053,085.40
  6. Step 6: Final answer
    x = 359,343,501.99

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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.