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Finding the Fourth Proportional to 158,490,365.30, 221,433,015.10 and 158,490,365.30

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Solution

The fourth proportional to 158,490,365.30, 221,433,015.10 and 158,490,365.30 is: 221,433,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,490,365.30 : 221,433,015.10 = 158,490,365.30 : x
  2. Step 2: Convert to fraction form
    158,490,365.30/221,433,015.10 = 158,490,365.30/x
  3. Step 3: Cross multiply
    158,490,365.30x = 221,433,015.10 × 158,490,365.30
  4. Step 4: Simplify right side
    158,490,365.30x = 35,094,999,452,679,416
  5. Step 5: Solve for x
    x = 35,094,999,452,679,416/158,490,365.30
  6. Step 6: Final answer
    x = 221,433,015.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.