Home / 142,017,235.40-212,878,886.70-77,184,057.80

Finding the Fourth Proportional to 142,017,235.40, 212,878,886.70 and 77,184,057.80

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Solution

The fourth proportional to 142,017,235.40, 212,878,886.70 and 77,184,057.80 is: 115,696,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,017,235.40 : 212,878,886.70 = 77,184,057.80 : x
  2. Step 2: Convert to fraction form
    142,017,235.40/212,878,886.70 = 77,184,057.80/x
  3. Step 3: Cross multiply
    142,017,235.40x = 212,878,886.70 × 77,184,057.80
  4. Step 4: Simplify right side
    142,017,235.40x = 16,430,856,295,452,450
  5. Step 5: Solve for x
    x = 16,430,856,295,452,450/142,017,235.40
  6. Step 6: Final answer
    x = 115,696,212.85

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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.