Home / 163,772,608.20-245,658,912.30-77,679,166.20

Finding the Fourth Proportional to 163,772,608.20, 245,658,912.30 and 77,679,166.20

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Solution

The fourth proportional to 163,772,608.20, 245,658,912.30 and 77,679,166.20 is: 116,518,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,772,608.20 : 245,658,912.30 = 77,679,166.20 : x
  2. Step 2: Convert to fraction form
    163,772,608.20/245,658,912.30 = 77,679,166.20/x
  3. Step 3: Cross multiply
    163,772,608.20x = 245,658,912.30 × 77,679,166.20
  4. Step 4: Simplify right side
    163,772,608.20x = 19,082,579,477,062,924
  5. Step 5: Solve for x
    x = 19,082,579,477,062,924/163,772,608.20
  6. Step 6: Final answer
    x = 116,518,749.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.