Home / 858,411,081.75-1,184,539,753.56-487,133,111.91

Finding the Fourth Proportional to 858,411,081.75, 1,184,539,753.56 and 487,133,111.91

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Solution

The fourth proportional to 858,411,081.75, 1,184,539,753.56 and 487,133,111.91 is: 672,205,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,411,081.75 : 1,184,539,753.56 = 487,133,111.91 : x
  2. Step 2: Convert to fraction form
    858,411,081.75/1,184,539,753.56 = 487,133,111.91/x
  3. Step 3: Cross multiply
    858,411,081.75x = 1,184,539,753.56 × 487,133,111.91
  4. Step 4: Simplify right side
    858,411,081.75x = 577,028,536,332,787,328
  5. Step 5: Solve for x
    x = 577,028,536,332,787,328/858,411,081.75
  6. Step 6: Final answer
    x = 672,205,367.10

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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.