Home / 15,285,753,371.88-21,095,018,386.02-8,603,182,765.80

Finding the Fourth Proportional to 15,285,753,371.88, 21,095,018,386.02 and 8,603,182,765.80

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Solution

The fourth proportional to 15,285,753,371.88, 21,095,018,386.02 and 8,603,182,765.80 is: 11,872,774,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285,753,371.88 : 21,095,018,386.02 = 8,603,182,765.80 : x
  2. Step 2: Convert to fraction form
    15,285,753,371.88/21,095,018,386.02 = 8,603,182,765.80/x
  3. Step 3: Cross multiply
    15,285,753,371.88x = 21,095,018,386.02 × 8,603,182,765.80
  4. Step 4: Simplify right side
    15,285,753,371.88x = 181,484,298,622,841,389,056
  5. Step 5: Solve for x
    x = 181,484,298,622,841,389,056/15,285,753,371.88
  6. Step 6: Final answer
    x = 11,872,774,223.66

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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.