Home / 161,983,061,747.28-242,886,017,344.86-128,620,992,038.40

Finding the Fourth Proportional to 161,983,061,747.28, 242,886,017,344.86 and 128,620,992,038.40

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Solution

The fourth proportional to 161,983,061,747.28, 242,886,017,344.86 and 128,620,992,038.40 is: 192,861,155,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,983,061,747.28 : 242,886,017,344.86 = 128,620,992,038.40 : x
  2. Step 2: Convert to fraction form
    161,983,061,747.28/242,886,017,344.86 = 128,620,992,038.40/x
  3. Step 3: Cross multiply
    161,983,061,747.28x = 242,886,017,344.86 × 128,620,992,038.40
  4. Step 4: Simplify right side
    161,983,061,747.28x = 31,240,240,503,151,917,006,848
  5. Step 5: Solve for x
    x = 31,240,240,503,151,917,006,848/161,983,061,747.28
  6. Step 6: Final answer
    x = 192,861,155,766.35

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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.