Home / 559,514,108.97-772,131,870.86-305,201,007.68

Finding the Fourth Proportional to 559,514,108.97, 772,131,870.86 and 305,201,007.68

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Solution

The fourth proportional to 559,514,108.97, 772,131,870.86 and 305,201,007.68 is: 421,178,700.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,514,108.97 : 772,131,870.86 = 305,201,007.68 : x
  2. Step 2: Convert to fraction form
    559,514,108.97/772,131,870.86 = 305,201,007.68/x
  3. Step 3: Cross multiply
    559,514,108.97x = 772,131,870.86 × 305,201,007.68
  4. Step 4: Simplify right side
    559,514,108.97x = 235,655,425,051,008,960
  5. Step 5: Solve for x
    x = 235,655,425,051,008,960/559,514,108.97
  6. Step 6: Final answer
    x = 421,178,700.01

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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.