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Finding the Fourth Proportional to 290,144,501.70, 435,216,752.55 and 252,353,141.70

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Solution

The fourth proportional to 290,144,501.70, 435,216,752.55 and 252,353,141.70 is: 378,529,712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,144,501.70 : 435,216,752.55 = 252,353,141.70 : x
  2. Step 2: Convert to fraction form
    290,144,501.70/435,216,752.55 = 252,353,141.70/x
  3. Step 3: Cross multiply
    290,144,501.70x = 435,216,752.55 × 252,353,141.70
  4. Step 4: Simplify right side
    290,144,501.70x = 109,828,314,826,463,984
  5. Step 5: Solve for x
    x = 109,828,314,826,463,984/290,144,501.70
  6. Step 6: Final answer
    x = 378,529,712.55

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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.