Home / 161,655,260.40-242,482,890.60-79,813,346.40

Finding the Fourth Proportional to 161,655,260.40, 242,482,890.60 and 79,813,346.40

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Solution

The fourth proportional to 161,655,260.40, 242,482,890.60 and 79,813,346.40 is: 119,720,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,655,260.40 : 242,482,890.60 = 79,813,346.40 : x
  2. Step 2: Convert to fraction form
    161,655,260.40/242,482,890.60 = 79,813,346.40/x
  3. Step 3: Cross multiply
    161,655,260.40x = 242,482,890.60 × 79,813,346.40
  4. Step 4: Simplify right side
    161,655,260.40x = 19,353,370,943,531,104
  5. Step 5: Solve for x
    x = 19,353,370,943,531,104/161,655,260.40
  6. Step 6: Final answer
    x = 119,720,019.60

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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.