Home / 520,710,397.84-718,564,161.54-285,755,017.24

Finding the Fourth Proportional to 520,710,397.84, 718,564,161.54 and 285,755,017.24

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Solution

The fourth proportional to 520,710,397.84, 718,564,161.54 and 285,755,017.24 is: 394,333,040.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,710,397.84 : 718,564,161.54 = 285,755,017.24 : x
  2. Step 2: Convert to fraction form
    520,710,397.84/718,564,161.54 = 285,755,017.24/x
  3. Step 3: Cross multiply
    520,710,397.84x = 718,564,161.54 × 285,755,017.24
  4. Step 4: Simplify right side
    520,710,397.84x = 205,333,314,368,908,832
  5. Step 5: Solve for x
    x = 205,333,314,368,908,832/520,710,397.84
  6. Step 6: Final answer
    x = 394,333,040.44

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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.