Home / 513,829,461.74-709,085,321.17-278,880,095.48

Finding the Fourth Proportional to 513,829,461.74, 709,085,321.17 and 278,880,095.48

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Solution

The fourth proportional to 513,829,461.74, 709,085,321.17 and 278,880,095.48 is: 384,854,892.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,829,461.74 : 709,085,321.17 = 278,880,095.48 : x
  2. Step 2: Convert to fraction form
    513,829,461.74/709,085,321.17 = 278,880,095.48/x
  3. Step 3: Cross multiply
    513,829,461.74x = 709,085,321.17 × 278,880,095.48
  4. Step 4: Simplify right side
    513,829,461.74x = 197,749,782,067,113,472
  5. Step 5: Solve for x
    x = 197,749,782,067,113,472/513,829,461.74
  6. Step 6: Final answer
    x = 384,854,892.13

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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.