Home / 103,038,221.32-142,196,155.50-56,630,120.20

Finding the Fourth Proportional to 103,038,221.32, 142,196,155.50 and 56,630,120.20

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Solution

The fourth proportional to 103,038,221.32, 142,196,155.50 and 56,630,120.20 is: 78,151,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038,221.32 : 142,196,155.50 = 56,630,120.20 : x
  2. Step 2: Convert to fraction form
    103,038,221.32/142,196,155.50 = 56,630,120.20/x
  3. Step 3: Cross multiply
    103,038,221.32x = 142,196,155.50 × 56,630,120.20
  4. Step 4: Simplify right side
    103,038,221.32x = 8,052,585,377,942,892
  5. Step 5: Solve for x
    x = 8,052,585,377,942,892/103,038,221.32
  6. Step 6: Final answer
    x = 78,151,440.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.