Home / 385,730,421-532,312,263.22-226,995,628.04

Finding the Fourth Proportional to 385,730,421, 532,312,263.22 and 226,995,628.04

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Solution

The fourth proportional to 385,730,421, 532,312,263.22 and 226,995,628.04 is: 313,256,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,730,421 : 532,312,263.22 = 226,995,628.04 : x
  2. Step 2: Convert to fraction form
    385,730,421/532,312,263.22 = 226,995,628.04/x
  3. Step 3: Cross multiply
    385,730,421x = 532,312,263.22 × 226,995,628.04
  4. Step 4: Simplify right side
    385,730,421x = 120,832,556,503,017,696
  5. Step 5: Solve for x
    x = 120,832,556,503,017,696/385,730,421
  6. Step 6: Final answer
    x = 313,256,486.72

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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.