Home / 2,116,113,691.60-3,174,180,680.76-642,266,307.28

Finding the Fourth Proportional to 2,116,113,691.60, 3,174,180,680.76 and 642,266,307.28

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Solution

The fourth proportional to 2,116,113,691.60, 3,174,180,680.76 and 642,266,307.28 is: 963,402,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,113,691.60 : 3,174,180,680.76 = 642,266,307.28 : x
  2. Step 2: Convert to fraction form
    2,116,113,691.60/3,174,180,680.76 = 642,266,307.28/x
  3. Step 3: Cross multiply
    2,116,113,691.60x = 3,174,180,680.76 × 642,266,307.28
  4. Step 4: Simplify right side
    2,116,113,691.60x = 2,038,669,304,471,241,728
  5. Step 5: Solve for x
    x = 2,038,669,304,471,241,728/2,116,113,691.60
  6. Step 6: Final answer
    x = 963,402,539.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.