Home / 70,210,138.18-105,319,828.32-18,396,009.58

Finding the Fourth Proportional to 70,210,138.18, 105,319,828.32 and 18,396,009.58

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Solution

The fourth proportional to 70,210,138.18, 105,319,828.32 and 18,396,009.58 is: 27,595,225.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,210,138.18 : 105,319,828.32 = 18,396,009.58 : x
  2. Step 2: Convert to fraction form
    70,210,138.18/105,319,828.32 = 18,396,009.58/x
  3. Step 3: Cross multiply
    70,210,138.18x = 105,319,828.32 × 18,396,009.58
  4. Step 4: Simplify right side
    70,210,138.18x = 1,937,464,570,738,675
  5. Step 5: Solve for x
    x = 1,937,464,570,738,675/70,210,138.18
  6. Step 6: Final answer
    x = 27,595,225.15

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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.