Home / 160,686,100.87-221,749,248.87-90,137,349.67

Finding the Fourth Proportional to 160,686,100.87, 221,749,248.87 and 90,137,349.67

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Solution

The fourth proportional to 160,686,100.87, 221,749,248.87 and 90,137,349.67 is: 124,390,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,100.87 : 221,749,248.87 = 90,137,349.67 : x
  2. Step 2: Convert to fraction form
    160,686,100.87/221,749,248.87 = 90,137,349.67/x
  3. Step 3: Cross multiply
    160,686,100.87x = 221,749,248.87 × 90,137,349.67
  4. Step 4: Simplify right side
    160,686,100.87x = 19,987,889,584,455,044
  5. Step 5: Solve for x
    x = 19,987,889,584,455,044/160,686,100.87
  6. Step 6: Final answer
    x = 124,390,905.47

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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.