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Finding the Fourth Proportional to 840,004,384.80, 1,173,285,160.80 and 840,004,384.80

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Solution

The fourth proportional to 840,004,384.80, 1,173,285,160.80 and 840,004,384.80 is: 1,173,285,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,004,384.80 : 1,173,285,160.80 = 840,004,384.80 : x
  2. Step 2: Convert to fraction form
    840,004,384.80/1,173,285,160.80 = 840,004,384.80/x
  3. Step 3: Cross multiply
    840,004,384.80x = 1,173,285,160.80 × 840,004,384.80
  4. Step 4: Simplify right side
    840,004,384.80x = 985,564,679,692,772,992
  5. Step 5: Solve for x
    x = 985,564,679,692,772,992/840,004,384.80
  6. Step 6: Final answer
    x = 1,173,285,160.80

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1.5x scale

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.