Home / 160,511,461.02-221,507,117.91-87,173,127.90

Finding the Fourth Proportional to 160,511,461.02, 221,507,117.91 and 87,173,127.90

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Solution

The fourth proportional to 160,511,461.02, 221,507,117.91 and 87,173,127.90 is: 120,299,623.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,511,461.02 : 221,507,117.91 = 87,173,127.90 : x
  2. Step 2: Convert to fraction form
    160,511,461.02/221,507,117.91 = 87,173,127.90/x
  3. Step 3: Cross multiply
    160,511,461.02x = 221,507,117.91 × 87,173,127.90
  4. Step 4: Simplify right side
    160,511,461.02x = 19,309,468,320,328,812
  5. Step 5: Solve for x
    x = 19,309,468,320,328,812/160,511,461.02
  6. Step 6: Final answer
    x = 120,299,623.45

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1.5x scale

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.