Home / 129,033,620.80-193,326,482.40-83,572,014.40

Finding the Fourth Proportional to 129,033,620.80, 193,326,482.40 and 83,572,014.40

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Solution

The fourth proportional to 129,033,620.80, 193,326,482.40 and 83,572,014.40 is: 125,212,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,033,620.80 : 193,326,482.40 = 83,572,014.40 : x
  2. Step 2: Convert to fraction form
    129,033,620.80/193,326,482.40 = 83,572,014.40/x
  3. Step 3: Cross multiply
    129,033,620.80x = 193,326,482.40 × 83,572,014.40
  4. Step 4: Simplify right side
    129,033,620.80x = 16,156,683,571,034,148
  5. Step 5: Solve for x
    x = 16,156,683,571,034,148/129,033,620.80
  6. Step 6: Final answer
    x = 125,212,975.28

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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.