Home / 310,248,370.80-428,139,265.95-169,116,501.16

Finding the Fourth Proportional to 310,248,370.80, 428,139,265.95 and 169,116,501.16

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Solution

The fourth proportional to 310,248,370.80, 428,139,265.95 and 169,116,501.16 is: 233,378,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,248,370.80 : 428,139,265.95 = 169,116,501.16 : x
  2. Step 2: Convert to fraction form
    310,248,370.80/428,139,265.95 = 169,116,501.16/x
  3. Step 3: Cross multiply
    310,248,370.80x = 428,139,265.95 × 169,116,501.16
  4. Step 4: Simplify right side
    310,248,370.80x = 72,405,414,665,604,368
  5. Step 5: Solve for x
    x = 72,405,414,665,604,368/310,248,370.80
  6. Step 6: Final answer
    x = 233,378,871.51

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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.