Home / 189,038,547.80-283,557,821.70-45,431,379.80

Finding the Fourth Proportional to 189,038,547.80, 283,557,821.70 and 45,431,379.80

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Solution

The fourth proportional to 189,038,547.80, 283,557,821.70 and 45,431,379.80 is: 68,147,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,038,547.80 : 283,557,821.70 = 45,431,379.80 : x
  2. Step 2: Convert to fraction form
    189,038,547.80/283,557,821.70 = 45,431,379.80/x
  3. Step 3: Cross multiply
    189,038,547.80x = 283,557,821.70 × 45,431,379.80
  4. Step 4: Simplify right side
    189,038,547.80x = 12,882,423,092,913,380
  5. Step 5: Solve for x
    x = 12,882,423,092,913,380/189,038,547.80
  6. Step 6: Final answer
    x = 68,147,069.70

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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.