Home / 70,124,155.10-105,186,233.56-19,006,173.91

Finding the Fourth Proportional to 70,124,155.10, 105,186,233.56 and 19,006,173.91

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Solution

The fourth proportional to 70,124,155.10, 105,186,233.56 and 19,006,173.91 is: 28,509,261.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,124,155.10 : 105,186,233.56 = 19,006,173.91 : x
  2. Step 2: Convert to fraction form
    70,124,155.10/105,186,233.56 = 19,006,173.91/x
  3. Step 3: Cross multiply
    70,124,155.10x = 105,186,233.56 × 19,006,173.91
  4. Step 4: Simplify right side
    70,124,155.10x = 1,999,187,847,979,238.50
  5. Step 5: Solve for x
    x = 1,999,187,847,979,238.50/70,124,155.10
  6. Step 6: Final answer
    x = 28,509,261.11

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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.