Home / 390,024,114.21-538,267,328.32-213,846,160.24

Finding the Fourth Proportional to 390,024,114.21, 538,267,328.32 and 213,846,160.24

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Solution

The fourth proportional to 390,024,114.21, 538,267,328.32 and 213,846,160.24 is: 295,126,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,024,114.21 : 538,267,328.32 = 213,846,160.24 : x
  2. Step 2: Convert to fraction form
    390,024,114.21/538,267,328.32 = 213,846,160.24/x
  3. Step 3: Cross multiply
    390,024,114.21x = 538,267,328.32 × 213,846,160.24
  4. Step 4: Simplify right side
    390,024,114.21x = 115,106,401,343,960,352
  5. Step 5: Solve for x
    x = 115,106,401,343,960,352/390,024,114.21
  6. Step 6: Final answer
    x = 295,126,370.78

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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.