Home / 472,355,637.85-708,485,618.85-127,344,140.65

Finding the Fourth Proportional to 472,355,637.85, 708,485,618.85 and 127,344,140.65

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Solution

The fourth proportional to 472,355,637.85, 708,485,618.85 and 127,344,140.65 is: 191,003,314.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,355,637.85 : 708,485,618.85 = 127,344,140.65 : x
  2. Step 2: Convert to fraction form
    472,355,637.85/708,485,618.85 = 127,344,140.65/x
  3. Step 3: Cross multiply
    472,355,637.85x = 708,485,618.85 × 127,344,140.65
  4. Step 4: Simplify right side
    472,355,637.85x = 90,221,492,295,336,704
  5. Step 5: Solve for x
    x = 90,221,492,295,336,704/472,355,637.85
  6. Step 6: Final answer
    x = 191,003,314.17

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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.