Home / 129,249,062.52-178,362,859.74-73,494,487.02

Finding the Fourth Proportional to 129,249,062.52, 178,362,859.74 and 73,494,487.02

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Solution

The fourth proportional to 129,249,062.52, 178,362,859.74 and 73,494,487.02 is: 101,421,910.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,249,062.52 : 178,362,859.74 = 73,494,487.02 : x
  2. Step 2: Convert to fraction form
    129,249,062.52/178,362,859.74 = 73,494,487.02/x
  3. Step 3: Cross multiply
    129,249,062.52x = 178,362,859.74 × 73,494,487.02
  4. Step 4: Simplify right side
    129,249,062.52x = 13,108,686,880,011,510
  5. Step 5: Solve for x
    x = 13,108,686,880,011,510/129,249,062.52
  6. Step 6: Final answer
    x = 101,421,910.72

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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.