Home / 386,828,679.54-533,818,570.40-210,614,653.74

Finding the Fourth Proportional to 386,828,679.54, 533,818,570.40 and 210,614,653.74

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Solution

The fourth proportional to 386,828,679.54, 533,818,570.40 and 210,614,653.74 is: 290,645,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,828,679.54 : 533,818,570.40 = 210,614,653.74 : x
  2. Step 2: Convert to fraction form
    386,828,679.54/533,818,570.40 = 210,614,653.74/x
  3. Step 3: Cross multiply
    386,828,679.54x = 533,818,570.40 × 210,614,653.74
  4. Step 4: Simplify right side
    386,828,679.54x = 112,430,013,363,724,736
  5. Step 5: Solve for x
    x = 112,430,013,363,724,736/386,828,679.54
  6. Step 6: Final answer
    x = 290,645,495.82

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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.