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Finding the Fourth Proportional to 1,365,216,088.32, 1,883,996,982.72 and 770,625,728.64

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Solution

The fourth proportional to 1,365,216,088.32, 1,883,996,982.72 and 770,625,728.64 is: 1,063,462,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365,216,088.32 : 1,883,996,982.72 = 770,625,728.64 : x
  2. Step 2: Convert to fraction form
    1,365,216,088.32/1,883,996,982.72 = 770,625,728.64/x
  3. Step 3: Cross multiply
    1,365,216,088.32x = 1,883,996,982.72 × 770,625,728.64
  4. Step 4: Simplify right side
    1,365,216,088.32x = 1,451,856,547,564,161,536
  5. Step 5: Solve for x
    x = 1,451,856,547,564,161,536/1,365,216,088.32
  6. Step 6: Final answer
    x = 1,063,462,817.34

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1.5x scale

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.