Home / 926,550,085.14-1,390,060,374.39-428,919,361.56

Finding the Fourth Proportional to 926,550,085.14, 1,390,060,374.39 and 428,919,361.56

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Solution

The fourth proportional to 926,550,085.14, 1,390,060,374.39 and 428,919,361.56 is: 643,487,942.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,550,085.14 : 1,390,060,374.39 = 428,919,361.56 : x
  2. Step 2: Convert to fraction form
    926,550,085.14/1,390,060,374.39 = 428,919,361.56/x
  3. Step 3: Cross multiply
    926,550,085.14x = 1,390,060,374.39 × 428,919,361.56
  4. Step 4: Simplify right side
    926,550,085.14x = 596,223,808,313,213,440
  5. Step 5: Solve for x
    x = 596,223,808,313,213,440/926,550,085.14
  6. Step 6: Final answer
    x = 643,487,942.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.