Home / 219,343,478.88-302,726,488.50-138,882,949.29

Finding the Fourth Proportional to 219,343,478.88, 302,726,488.50 and 138,882,949.29

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Solution

The fourth proportional to 219,343,478.88, 302,726,488.50 and 138,882,949.29 is: 191,679,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,343,478.88 : 302,726,488.50 = 138,882,949.29 : x
  2. Step 2: Convert to fraction form
    219,343,478.88/302,726,488.50 = 138,882,949.29/x
  3. Step 3: Cross multiply
    219,343,478.88x = 302,726,488.50 × 138,882,949.29
  4. Step 4: Simplify right side
    219,343,478.88x = 42,043,547,551,085,264
  5. Step 5: Solve for x
    x = 42,043,547,551,085,264/219,343,478.88
  6. Step 6: Final answer
    x = 191,679,040.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.