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Finding the Fourth Proportional to 360,490,851.60, 540,736,277.40 and 239,322,303.60

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Solution

The fourth proportional to 360,490,851.60, 540,736,277.40 and 239,322,303.60 is: 358,983,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,490,851.60 : 540,736,277.40 = 239,322,303.60 : x
  2. Step 2: Convert to fraction form
    360,490,851.60/540,736,277.40 = 239,322,303.60/x
  3. Step 3: Cross multiply
    360,490,851.60x = 540,736,277.40 × 239,322,303.60
  4. Step 4: Simplify right side
    360,490,851.60x = 129,410,251,547,456,608
  5. Step 5: Solve for x
    x = 129,410,251,547,456,608/360,490,851.60
  6. Step 6: Final answer
    x = 358,983,455.40

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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.