Home / 386,688,298,196.45-533,605,807,527.09-213,063,721,439.45

Finding the Fourth Proportional to 386,688,298,196.45, 533,605,807,527.09 and 213,063,721,439.45

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Solution

The fourth proportional to 386,688,298,196.45, 533,605,807,527.09 and 213,063,721,439.45 is: 294,014,687,446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,688,298,196.45 : 533,605,807,527.09 = 213,063,721,439.45 : x
  2. Step 2: Convert to fraction form
    386,688,298,196.45/533,605,807,527.09 = 213,063,721,439.45/x
  3. Step 3: Cross multiply
    386,688,298,196.45x = 533,605,807,527.09 × 213,063,721,439.45
  4. Step 4: Simplify right side
    386,688,298,196.45x = 113,692,039,133,424,682,795,008
  5. Step 5: Solve for x
    x = 113,692,039,133,424,682,795,008/386,688,298,196.45
  6. Step 6: Final answer
    x = 294,014,687,446.44

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1.5x scale

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.