Home / 520,434,491.48-718,192,897.80-297,413,619.20

Finding the Fourth Proportional to 520,434,491.48, 718,192,897.80 and 297,413,619.20

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Solution

The fourth proportional to 520,434,491.48, 718,192,897.80 and 297,413,619.20 is: 410,426,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,434,491.48 : 718,192,897.80 = 297,413,619.20 : x
  2. Step 2: Convert to fraction form
    520,434,491.48/718,192,897.80 = 297,413,619.20/x
  3. Step 3: Cross multiply
    520,434,491.48x = 718,192,897.80 × 297,413,619.20
  4. Step 4: Simplify right side
    520,434,491.48x = 213,600,349,018,433,696
  5. Step 5: Solve for x
    x = 213,600,349,018,433,696/520,434,491.48
  6. Step 6: Final answer
    x = 410,426,965.38

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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.