Home / 515,433,345.64-711,298,132.98-283,646,337.64

Finding the Fourth Proportional to 515,433,345.64, 711,298,132.98 and 283,646,337.64

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Solution

The fourth proportional to 515,433,345.64, 711,298,132.98 and 283,646,337.64 is: 391,432,009.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,433,345.64 : 711,298,132.98 = 283,646,337.64 : x
  2. Step 2: Convert to fraction form
    515,433,345.64/711,298,132.98 = 283,646,337.64/x
  3. Step 3: Cross multiply
    515,433,345.64x = 711,298,132.98 × 283,646,337.64
  4. Step 4: Simplify right side
    515,433,345.64x = 201,757,110,389,946,688
  5. Step 5: Solve for x
    x = 201,757,110,389,946,688/515,433,345.64
  6. Step 6: Final answer
    x = 391,432,009.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.