Home / 939,301,321.20-1,408,951,981.80-885,732,068.40

Finding the Fourth Proportional to 939,301,321.20, 1,408,951,981.80 and 885,732,068.40

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Solution

The fourth proportional to 939,301,321.20, 1,408,951,981.80 and 885,732,068.40 is: 1,328,598,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,301,321.20 : 1,408,951,981.80 = 885,732,068.40 : x
  2. Step 2: Convert to fraction form
    939,301,321.20/1,408,951,981.80 = 885,732,068.40/x
  3. Step 3: Cross multiply
    939,301,321.20x = 1,408,951,981.80 × 885,732,068.40
  4. Step 4: Simplify right side
    939,301,321.20x = 1,247,953,953,115,993,088
  5. Step 5: Solve for x
    x = 1,247,953,953,115,993,088/939,301,321.20
  6. Step 6: Final answer
    x = 1,328,598,102.60

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1.5x scale

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.