Home / 216,220,211.39-324,372,045.15-70,614,628.40

Finding the Fourth Proportional to 216,220,211.39, 324,372,045.15 and 70,614,628.40

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Solution

The fourth proportional to 216,220,211.39, 324,372,045.15 and 70,614,628.40 is: 105,935,570.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,220,211.39 : 324,372,045.15 = 70,614,628.40 : x
  2. Step 2: Convert to fraction form
    216,220,211.39/324,372,045.15 = 70,614,628.40/x
  3. Step 3: Cross multiply
    216,220,211.39x = 324,372,045.15 × 70,614,628.40
  4. Step 4: Simplify right side
    216,220,211.39x = 22,905,411,432,426,200
  5. Step 5: Solve for x
    x = 22,905,411,432,426,200/216,220,211.39
  6. Step 6: Final answer
    x = 105,935,570.43

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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.