Home / 672,688,511.10-1,009,032,766.65-309,891,455.10

Finding the Fourth Proportional to 672,688,511.10, 1,009,032,766.65 and 309,891,455.10

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Solution

The fourth proportional to 672,688,511.10, 1,009,032,766.65 and 309,891,455.10 is: 464,837,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,688,511.10 : 1,009,032,766.65 = 309,891,455.10 : x
  2. Step 2: Convert to fraction form
    672,688,511.10/1,009,032,766.65 = 309,891,455.10/x
  3. Step 3: Cross multiply
    672,688,511.10x = 1,009,032,766.65 × 309,891,455.10
  4. Step 4: Simplify right side
    672,688,511.10x = 312,690,632,300,747,264
  5. Step 5: Solve for x
    x = 312,690,632,300,747,264/672,688,511.10
  6. Step 6: Final answer
    x = 464,837,182.65

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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.