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Finding the Fourth Proportional to 313,258,697.30, 469,888,045.95 and 190,814,690.90

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Solution

The fourth proportional to 313,258,697.30, 469,888,045.95 and 190,814,690.90 is: 286,222,036.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,258,697.30 : 469,888,045.95 = 190,814,690.90 : x
  2. Step 2: Convert to fraction form
    313,258,697.30/469,888,045.95 = 190,814,690.90/x
  3. Step 3: Cross multiply
    313,258,697.30x = 469,888,045.95 × 190,814,690.90
  4. Step 4: Simplify right side
    313,258,697.30x = 89,661,542,245,554,240
  5. Step 5: Solve for x
    x = 89,661,542,245,554,240/313,258,697.30
  6. Step 6: Final answer
    x = 286,222,036.35

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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.