Home / 160,519,979.34-221,518,705.23-87,181,121.34

Finding the Fourth Proportional to 160,519,979.34, 221,518,705.23 and 87,181,121.34

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Solution

The fourth proportional to 160,519,979.34, 221,518,705.23 and 87,181,121.34 is: 120,310,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,519,979.34 : 221,518,705.23 = 87,181,121.34 : x
  2. Step 2: Convert to fraction form
    160,519,979.34/221,518,705.23 = 87,181,121.34/x
  3. Step 3: Cross multiply
    160,519,979.34x = 221,518,705.23 × 87,181,121.34
  4. Step 4: Simplify right side
    160,519,979.34x = 19,312,249,119,736,324
  5. Step 5: Solve for x
    x = 19,312,249,119,736,324/160,519,979.34
  6. Step 6: Final answer
    x = 120,310,563.20

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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.