Home / 127,748,246.40-191,622,369.60-105,073,430.40

Finding the Fourth Proportional to 127,748,246.40, 191,622,369.60 and 105,073,430.40

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Solution

The fourth proportional to 127,748,246.40, 191,622,369.60 and 105,073,430.40 is: 157,610,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,748,246.40 : 191,622,369.60 = 105,073,430.40 : x
  2. Step 2: Convert to fraction form
    127,748,246.40/191,622,369.60 = 105,073,430.40/x
  3. Step 3: Cross multiply
    127,748,246.40x = 191,622,369.60 × 105,073,430.40
  4. Step 4: Simplify right side
    127,748,246.40x = 20,134,419,715,248,676
  5. Step 5: Solve for x
    x = 20,134,419,715,248,676/127,748,246.40
  6. Step 6: Final answer
    x = 157,610,145.60

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1.5x scale

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.