Home / 70,124,052.66-105,186,079.91-19,006,071.48

Finding the Fourth Proportional to 70,124,052.66, 105,186,079.91 and 19,006,071.48

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Solution

The fourth proportional to 70,124,052.66, 105,186,079.91 and 19,006,071.48 is: 28,509,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,124,052.66 : 105,186,079.91 = 19,006,071.48 : x
  2. Step 2: Convert to fraction form
    70,124,052.66/105,186,079.91 = 19,006,071.48/x
  3. Step 3: Cross multiply
    70,124,052.66x = 105,186,079.91 × 19,006,071.48
  4. Step 4: Simplify right side
    70,124,052.66x = 1,999,174,153,375,421.75
  5. Step 5: Solve for x
    x = 1,999,174,153,375,421.75/70,124,052.66
  6. Step 6: Final answer
    x = 28,509,107.47

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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.