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Finding the Fourth Proportional to 637,982,208.80, 956,973,313.20 and 365,128,589.60

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Solution

The fourth proportional to 637,982,208.80, 956,973,313.20 and 365,128,589.60 is: 547,692,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,982,208.80 : 956,973,313.20 = 365,128,589.60 : x
  2. Step 2: Convert to fraction form
    637,982,208.80/956,973,313.20 = 365,128,589.60/x
  3. Step 3: Cross multiply
    637,982,208.80x = 956,973,313.20 × 365,128,589.60
  4. Step 4: Simplify right side
    637,982,208.80x = 349,418,316,133,555,072
  5. Step 5: Solve for x
    x = 349,418,316,133,555,072/637,982,208.80
  6. Step 6: Final answer
    x = 547,692,884.40

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Double scale
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1.5x scale

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.