Home / 137,434,704-189,663,816.93-83,792,461.02

Finding the Fourth Proportional to 137,434,704, 189,663,816.93 and 83,792,461.02

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Solution

The fourth proportional to 137,434,704, 189,663,816.93 and 83,792,461.02 is: 115,635,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,434,704 : 189,663,816.93 = 83,792,461.02 : x
  2. Step 2: Convert to fraction form
    137,434,704/189,663,816.93 = 83,792,461.02/x
  3. Step 3: Cross multiply
    137,434,704x = 189,663,816.93 × 83,792,461.02
  4. Step 4: Simplify right side
    137,434,704x = 15,892,397,987,011,440
  5. Step 5: Solve for x
    x = 15,892,397,987,011,440/137,434,704
  6. Step 6: Final answer
    x = 115,635,989.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.