Home / 371,902,885.91-513,210,595.27-202,357,821.49

Finding the Fourth Proportional to 371,902,885.91, 513,210,595.27 and 202,357,821.49

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Solution

The fourth proportional to 371,902,885.91, 513,210,595.27 and 202,357,821.49 is: 279,245,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,902,885.91 : 513,210,595.27 = 202,357,821.49 : x
  2. Step 2: Convert to fraction form
    371,902,885.91/513,210,595.27 = 202,357,821.49/x
  3. Step 3: Cross multiply
    371,902,885.91x = 513,210,595.27 × 202,357,821.49
  4. Step 4: Simplify right side
    371,902,885.91x = 103,852,178,024,677,632
  5. Step 5: Solve for x
    x = 103,852,178,024,677,632/371,902,885.91
  6. Step 6: Final answer
    x = 279,245,421.21

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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.