Home / 618,336,247.93-853,300,042.11-354,069,316.98

Finding the Fourth Proportional to 618,336,247.93, 853,300,042.11 and 354,069,316.98

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Solution

The fourth proportional to 618,336,247.93, 853,300,042.11 and 354,069,316.98 is: 488,613,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,336,247.93 : 853,300,042.11 = 354,069,316.98 : x
  2. Step 2: Convert to fraction form
    618,336,247.93/853,300,042.11 = 354,069,316.98/x
  3. Step 3: Cross multiply
    618,336,247.93x = 853,300,042.11 × 354,069,316.98
  4. Step 4: Simplify right side
    618,336,247.93x = 302,127,363,088,892,928
  5. Step 5: Solve for x
    x = 302,127,363,088,892,928/618,336,247.93
  6. Step 6: Final answer
    x = 488,613,378.40

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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.