Home / 141,630,311.25-212,435,715.60-87,051,320.55

Finding the Fourth Proportional to 141,630,311.25, 212,435,715.60 and 87,051,320.55

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Solution

The fourth proportional to 141,630,311.25, 212,435,715.60 and 87,051,320.55 is: 130,570,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,630,311.25 : 212,435,715.60 = 87,051,320.55 : x
  2. Step 2: Convert to fraction form
    141,630,311.25/212,435,715.60 = 87,051,320.55/x
  3. Step 3: Cross multiply
    141,630,311.25x = 212,435,715.60 × 87,051,320.55
  4. Step 4: Simplify right side
    141,630,311.25x = 18,492,809,574,964,236
  5. Step 5: Solve for x
    x = 18,492,809,574,964,236/141,630,311.25
  6. Step 6: Final answer
    x = 130,570,987.32

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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.