Home / 286,897,303.20-430,345,940.40-272,957,612.64

Finding the Fourth Proportional to 286,897,303.20, 430,345,940.40 and 272,957,612.64

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Solution

The fourth proportional to 286,897,303.20, 430,345,940.40 and 272,957,612.64 is: 409,436,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,897,303.20 : 430,345,940.40 = 272,957,612.64 : x
  2. Step 2: Convert to fraction form
    286,897,303.20/430,345,940.40 = 272,957,612.64/x
  3. Step 3: Cross multiply
    286,897,303.20x = 430,345,940.40 × 272,957,612.64
  4. Step 4: Simplify right side
    286,897,303.20x = 117,466,200,500,899,712
  5. Step 5: Solve for x
    x = 117,466,200,500,899,712/286,897,303.20
  6. Step 6: Final answer
    x = 409,436,405.26

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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.