Home / 490,490,530.40-735,610,368.72-145,363,656.80

Finding the Fourth Proportional to 490,490,530.40, 735,610,368.72 and 145,363,656.80

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Solution

The fourth proportional to 490,490,530.40, 735,610,368.72 and 145,363,656.80 is: 218,008,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,490,530.40 : 735,610,368.72 = 145,363,656.80 : x
  2. Step 2: Convert to fraction form
    490,490,530.40/735,610,368.72 = 145,363,656.80/x
  3. Step 3: Cross multiply
    490,490,530.40x = 735,610,368.72 × 145,363,656.80
  4. Step 4: Simplify right side
    490,490,530.40x = 106,931,013,177,135,552
  5. Step 5: Solve for x
    x = 106,931,013,177,135,552/490,490,530.40
  6. Step 6: Final answer
    x = 218,008,313.21

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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.