Home / 559,514,108.47-772,131,870.17-305,201,007.18

Finding the Fourth Proportional to 559,514,108.47, 772,131,870.17 and 305,201,007.18

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Solution

The fourth proportional to 559,514,108.47, 772,131,870.17 and 305,201,007.18 is: 421,178,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,514,108.47 : 772,131,870.17 = 305,201,007.18 : x
  2. Step 2: Convert to fraction form
    559,514,108.47/772,131,870.17 = 305,201,007.18/x
  3. Step 3: Cross multiply
    559,514,108.47x = 772,131,870.17 × 305,201,007.18
  4. Step 4: Simplify right side
    559,514,108.47x = 235,655,424,454,354,336
  5. Step 5: Solve for x
    x = 235,655,424,454,354,336/559,514,108.47
  6. Step 6: Final answer
    x = 421,178,699.32

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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.