Home / 380,823,566.88-525,547,607.76-215,805,649.44

Finding the Fourth Proportional to 380,823,566.88, 525,547,607.76 and 215,805,649.44

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Solution

The fourth proportional to 380,823,566.88, 525,547,607.76 and 215,805,649.44 is: 297,818,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,823,566.88 : 525,547,607.76 = 215,805,649.44 : x
  2. Step 2: Convert to fraction form
    380,823,566.88/525,547,607.76 = 215,805,649.44/x
  3. Step 3: Cross multiply
    380,823,566.88x = 525,547,607.76 × 215,805,649.44
  4. Step 4: Simplify right side
    380,823,566.88x = 113,416,142,804,285,184
  5. Step 5: Solve for x
    x = 113,416,142,804,285,184/380,823,566.88
  6. Step 6: Final answer
    x = 297,818,078.15

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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.