Home / 389,729,423.90-537,822,051.90-211,109,944.13

Finding the Fourth Proportional to 389,729,423.90, 537,822,051.90 and 211,109,944.13

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Solution

The fourth proportional to 389,729,423.90, 537,822,051.90 and 211,109,944.13 is: 291,329,256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,729,423.90 : 537,822,051.90 = 211,109,944.13 : x
  2. Step 2: Convert to fraction form
    389,729,423.90/537,822,051.90 = 211,109,944.13/x
  3. Step 3: Cross multiply
    389,729,423.90x = 537,822,051.90 × 211,109,944.13
  4. Step 4: Simplify right side
    389,729,423.90x = 113,539,583,329,045,968
  5. Step 5: Solve for x
    x = 113,539,583,329,045,968/389,729,423.90
  6. Step 6: Final answer
    x = 291,329,256.58

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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.