Home / 438,575,673.18-657,946,467-176,280,642.12

Finding the Fourth Proportional to 438,575,673.18, 657,946,467 and 176,280,642.12

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Solution

The fourth proportional to 438,575,673.18, 657,946,467 and 176,280,642.12 is: 264,454,306.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,575,673.18 : 657,946,467 = 176,280,642.12 : x
  2. Step 2: Convert to fraction form
    438,575,673.18/657,946,467 = 176,280,642.12/x
  3. Step 3: Cross multiply
    438,575,673.18x = 657,946,467 × 176,280,642.12
  4. Step 4: Simplify right side
    438,575,673.18x = 115,983,225,683,345,392
  5. Step 5: Solve for x
    x = 115,983,225,683,345,392/438,575,673.18
  6. Step 6: Final answer
    x = 264,454,306.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.