Home / 191,461,856.40-286,555,055.40-168,503,605.20

Finding the Fourth Proportional to 191,461,856.40, 286,555,055.40 and 168,503,605.20

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Solution

The fourth proportional to 191,461,856.40, 286,555,055.40 and 168,503,605.20 is: 252,194,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,461,856.40 : 286,555,055.40 = 168,503,605.20 : x
  2. Step 2: Convert to fraction form
    191,461,856.40/286,555,055.40 = 168,503,605.20/x
  3. Step 3: Cross multiply
    191,461,856.40x = 286,555,055.40 × 168,503,605.20
  4. Step 4: Simplify right side
    191,461,856.40x = 48,285,559,923,185,720
  5. Step 5: Solve for x
    x = 48,285,559,923,185,720/191,461,856.40
  6. Step 6: Final answer
    x = 252,194,148.91

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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.