Home / 386,688,298,176.32-533,605,807,499.48-213,063,721,419.57

Finding the Fourth Proportional to 386,688,298,176.32, 533,605,807,499.48 and 213,063,721,419.57

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Solution

The fourth proportional to 386,688,298,176.32, 533,605,807,499.48 and 213,063,721,419.57 is: 294,014,687,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,688,298,176.32 : 533,605,807,499.48 = 213,063,721,419.57 : x
  2. Step 2: Convert to fraction form
    386,688,298,176.32/533,605,807,499.48 = 213,063,721,419.57/x
  3. Step 3: Cross multiply
    386,688,298,176.32x = 533,605,807,499.48 × 213,063,721,419.57
  4. Step 4: Simplify right side
    386,688,298,176.32x = 113,692,039,116,933,904,203,776
  5. Step 5: Solve for x
    x = 113,692,039,116,933,904,203,776/386,688,298,176.32
  6. Step 6: Final answer
    x = 294,014,687,419.10

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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.