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Finding the Fourth Proportional to 360,299,411.70, 540,449,117.55 and 237,642,828.90

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Solution

The fourth proportional to 360,299,411.70, 540,449,117.55 and 237,642,828.90 is: 356,464,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,299,411.70 : 540,449,117.55 = 237,642,828.90 : x
  2. Step 2: Convert to fraction form
    360,299,411.70/540,449,117.55 = 237,642,828.90/x
  3. Step 3: Cross multiply
    360,299,411.70x = 540,449,117.55 × 237,642,828.90
  4. Step 4: Simplify right side
    360,299,411.70x = 128,433,857,171,090,624
  5. Step 5: Solve for x
    x = 128,433,857,171,090,624/360,299,411.70
  6. Step 6: Final answer
    x = 356,464,243.35

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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.