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Finding the Fourth Proportional to 571,386,803, 788,520,409.08 and 317,073,380.72

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Solution

The fourth proportional to 571,386,803, 788,520,409.08 and 317,073,380.72 is: 437,564,939.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,386,803 : 788,520,409.08 = 317,073,380.72 : x
  2. Step 2: Convert to fraction form
    571,386,803/788,520,409.08 = 317,073,380.72/x
  3. Step 3: Cross multiply
    571,386,803x = 788,520,409.08 × 317,073,380.72
  4. Step 4: Simplify right side
    571,386,803x = 250,018,831,873,713,024
  5. Step 5: Solve for x
    x = 250,018,831,873,713,024/571,386,803
  6. Step 6: Final answer
    x = 437,564,939.48

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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.