Home / 1,172,715,547.59-1,759,289,576.85-385,813,488.15

Finding the Fourth Proportional to 1,172,715,547.59, 1,759,289,576.85 and 385,813,488.15

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Solution

The fourth proportional to 1,172,715,547.59, 1,759,289,576.85 and 385,813,488.15 is: 578,791,378.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,715,547.59 : 1,759,289,576.85 = 385,813,488.15 : x
  2. Step 2: Convert to fraction form
    1,172,715,547.59/1,759,289,576.85 = 385,813,488.15/x
  3. Step 3: Cross multiply
    1,172,715,547.59x = 1,759,289,576.85 × 385,813,488.15
  4. Step 4: Simplify right side
    1,172,715,547.59x = 678,757,648,310,435,968
  5. Step 5: Solve for x
    x = 678,757,648,310,435,968/1,172,715,547.59
  6. Step 6: Final answer
    x = 578,791,378.44

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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.