Home / 209,123,341.58-313,618,461.15-69,037,715.72

Finding the Fourth Proportional to 209,123,341.58, 313,618,461.15 and 69,037,715.72

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Solution

The fourth proportional to 209,123,341.58, 313,618,461.15 and 69,037,715.72 is: 103,534,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,123,341.58 : 313,618,461.15 = 69,037,715.72 : x
  2. Step 2: Convert to fraction form
    209,123,341.58/313,618,461.15 = 69,037,715.72/x
  3. Step 3: Cross multiply
    209,123,341.58x = 313,618,461.15 × 69,037,715.72
  4. Step 4: Simplify right side
    209,123,341.58x = 21,651,502,165,417,564
  5. Step 5: Solve for x
    x = 21,651,502,165,417,564/209,123,341.58
  6. Step 6: Final answer
    x = 103,534,603.08

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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.