Home / 338,971,411.80-508,457,117.70-318,564,077.40

Finding the Fourth Proportional to 338,971,411.80, 508,457,117.70 and 318,564,077.40

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Solution

The fourth proportional to 338,971,411.80, 508,457,117.70 and 318,564,077.40 is: 477,846,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,971,411.80 : 508,457,117.70 = 318,564,077.40 : x
  2. Step 2: Convert to fraction form
    338,971,411.80/508,457,117.70 = 318,564,077.40/x
  3. Step 3: Cross multiply
    338,971,411.80x = 508,457,117.70 × 318,564,077.40
  4. Step 4: Simplify right side
    338,971,411.80x = 161,976,172,597,563,680
  5. Step 5: Solve for x
    x = 161,976,172,597,563,680/338,971,411.80
  6. Step 6: Final answer
    x = 477,846,116.10

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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.