Home / 154,028,580.54-212,535,931.84-87,023,089.90

Finding the Fourth Proportional to 154,028,580.54, 212,535,931.84 and 87,023,089.90

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Solution

The fourth proportional to 154,028,580.54, 212,535,931.84 and 87,023,089.90 is: 120,078,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,028,580.54 : 212,535,931.84 = 87,023,089.90 : x
  2. Step 2: Convert to fraction form
    154,028,580.54/212,535,931.84 = 87,023,089.90/x
  3. Step 3: Cross multiply
    154,028,580.54x = 212,535,931.84 × 87,023,089.90
  4. Step 4: Simplify right side
    154,028,580.54x = 18,495,533,503,492,592
  5. Step 5: Solve for x
    x = 18,495,533,503,492,592/154,028,580.54
  6. Step 6: Final answer
    x = 120,078,581.77

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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.