Home / 295,245,345.20-442,868,017.80-290,143,511.60

Finding the Fourth Proportional to 295,245,345.20, 442,868,017.80 and 290,143,511.60

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Solution

The fourth proportional to 295,245,345.20, 442,868,017.80 and 290,143,511.60 is: 435,215,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,245,345.20 : 442,868,017.80 = 290,143,511.60 : x
  2. Step 2: Convert to fraction form
    295,245,345.20/442,868,017.80 = 290,143,511.60/x
  3. Step 3: Cross multiply
    295,245,345.20x = 442,868,017.80 × 290,143,511.60
  4. Step 4: Simplify right side
    295,245,345.20x = 128,495,281,859,823,328
  5. Step 5: Solve for x
    x = 128,495,281,859,823,328/295,245,345.20
  6. Step 6: Final answer
    x = 435,215,267.40

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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.