Home / 70,457,904.20-105,786,389.10-43,584,048.20

Finding the Fourth Proportional to 70,457,904.20, 105,786,389.10 and 43,584,048.20

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Solution

The fourth proportional to 70,457,904.20, 105,786,389.10 and 43,584,048.20 is: 65,437,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,457,904.20 : 105,786,389.10 = 43,584,048.20 : x
  2. Step 2: Convert to fraction form
    70,457,904.20/105,786,389.10 = 43,584,048.20/x
  3. Step 3: Cross multiply
    70,457,904.20x = 105,786,389.10 × 43,584,048.20
  4. Step 4: Simplify right side
    70,457,904.20x = 4,610,599,081,438,355
  5. Step 5: Solve for x
    x = 4,610,599,081,438,355/70,457,904.20
  6. Step 6: Final answer
    x = 65,437,641.58

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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.