Home / 513,922,275.48-709,213,640.02-278,973,095.52

Finding the Fourth Proportional to 513,922,275.48, 709,213,640.02 and 278,973,095.52

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Solution

The fourth proportional to 513,922,275.48, 709,213,640.02 and 278,973,095.52 is: 384,983,360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,922,275.48 : 709,213,640.02 = 278,973,095.52 : x
  2. Step 2: Convert to fraction form
    513,922,275.48/709,213,640.02 = 278,973,095.52/x
  3. Step 3: Cross multiply
    513,922,275.48x = 709,213,640.02 × 278,973,095.52
  4. Step 4: Simplify right side
    513,922,275.48x = 197,851,524,541,386,336
  5. Step 5: Solve for x
    x = 197,851,524,541,386,336/513,922,275.48
  6. Step 6: Final answer
    x = 384,983,360.29

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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.