Home / 212,990,730.60-319,486,095.90-190,032,479.40

Finding the Fourth Proportional to 212,990,730.60, 319,486,095.90 and 190,032,479.40

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Solution

The fourth proportional to 212,990,730.60, 319,486,095.90 and 190,032,479.40 is: 285,048,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,990,730.60 : 319,486,095.90 = 190,032,479.40 : x
  2. Step 2: Convert to fraction form
    212,990,730.60/319,486,095.90 = 190,032,479.40/x
  3. Step 3: Cross multiply
    212,990,730.60x = 319,486,095.90 × 190,032,479.40
  4. Step 4: Simplify right side
    212,990,730.60x = 60,712,734,937,703,168
  5. Step 5: Solve for x
    x = 60,712,734,937,703,168/212,990,730.60
  6. Step 6: Final answer
    x = 285,048,719.10

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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.