Home / 421,848,007.40-590,990,318.20-421,848,007.40

Finding the Fourth Proportional to 421,848,007.40, 590,990,318.20 and 421,848,007.40

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Solution

The fourth proportional to 421,848,007.40, 590,990,318.20 and 421,848,007.40 is: 590,990,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,848,007.40 : 590,990,318.20 = 421,848,007.40 : x
  2. Step 2: Convert to fraction form
    421,848,007.40/590,990,318.20 = 421,848,007.40/x
  3. Step 3: Cross multiply
    421,848,007.40x = 590,990,318.20 × 421,848,007.40
  4. Step 4: Simplify right side
    421,848,007.40x = 249,308,088,125,361,952
  5. Step 5: Solve for x
    x = 249,308,088,125,361,952/421,848,007.40
  6. Step 6: Final answer
    x = 590,990,318.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.