Home / 428,034,947.54-590,724,656.61-242,428,981.46

Finding the Fourth Proportional to 428,034,947.54, 590,724,656.61 and 242,428,981.46

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Solution

The fourth proportional to 428,034,947.54, 590,724,656.61 and 242,428,981.46 is: 334,572,626.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,034,947.54 : 590,724,656.61 = 242,428,981.46 : x
  2. Step 2: Convert to fraction form
    428,034,947.54/590,724,656.61 = 242,428,981.46/x
  3. Step 3: Cross multiply
    428,034,947.54x = 590,724,656.61 × 242,428,981.46
  4. Step 4: Simplify right side
    428,034,947.54x = 143,208,776,825,270,560
  5. Step 5: Solve for x
    x = 143,208,776,825,270,560/428,034,947.54
  6. Step 6: Final answer
    x = 334,572,626.95

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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.