Home / 160,519,980.34-221,518,706.61-87,181,122.34

Finding the Fourth Proportional to 160,519,980.34, 221,518,706.61 and 87,181,122.34

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Solution

The fourth proportional to 160,519,980.34, 221,518,706.61 and 87,181,122.34 is: 120,310,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,519,980.34 : 221,518,706.61 = 87,181,122.34 : x
  2. Step 2: Convert to fraction form
    160,519,980.34/221,518,706.61 = 87,181,122.34/x
  3. Step 3: Cross multiply
    160,519,980.34x = 221,518,706.61 × 87,181,122.34
  4. Step 4: Simplify right side
    160,519,980.34x = 19,312,249,461,564,980
  5. Step 5: Solve for x
    x = 19,312,249,461,564,980/160,519,980.34
  6. Step 6: Final answer
    x = 120,310,564.58

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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.