Home / 553,017,795.18-763,187,742.27-318,068,521.26

Finding the Fourth Proportional to 553,017,795.18, 763,187,742.27 and 318,068,521.26

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Solution

The fourth proportional to 553,017,795.18, 763,187,742.27 and 318,068,521.26 is: 438,947,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,017,795.18 : 763,187,742.27 = 318,068,521.26 : x
  2. Step 2: Convert to fraction form
    553,017,795.18/763,187,742.27 = 318,068,521.26/x
  3. Step 3: Cross multiply
    553,017,795.18x = 763,187,742.27 × 318,068,521.26
  4. Step 4: Simplify right side
    553,017,795.18x = 242,745,996,627,576,896
  5. Step 5: Solve for x
    x = 242,745,996,627,576,896/553,017,795.18
  6. Step 6: Final answer
    x = 438,947,894.16

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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.