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Finding the Fourth Proportional to 1,692,753,274.76, 2,335,719,235.95 and 978,355,352.87

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Solution

The fourth proportional to 1,692,753,274.76, 2,335,719,235.95 and 978,355,352.87 is: 1,349,968,392.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,753,274.76 : 2,335,719,235.95 = 978,355,352.87 : x
  2. Step 2: Convert to fraction form
    1,692,753,274.76/2,335,719,235.95 = 978,355,352.87/x
  3. Step 3: Cross multiply
    1,692,753,274.76x = 2,335,719,235.95 × 978,355,352.87
  4. Step 4: Simplify right side
    1,692,753,274.76x = 2,285,163,417,281,430,272
  5. Step 5: Solve for x
    x = 2,285,163,417,281,430,272/1,692,753,274.76
  6. Step 6: Final answer
    x = 1,349,968,392.53

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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.