Home / 1,281,335,720.51-1,921,809,382.89-348,731,242.43

Finding the Fourth Proportional to 1,281,335,720.51, 1,921,809,382.89 and 348,731,242.43

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Solution

The fourth proportional to 1,281,335,720.51, 1,921,809,382.89 and 348,731,242.43 is: 523,044,010.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,335,720.51 : 1,921,809,382.89 = 348,731,242.43 : x
  2. Step 2: Convert to fraction form
    1,281,335,720.51/1,921,809,382.89 = 348,731,242.43/x
  3. Step 3: Cross multiply
    1,281,335,720.51x = 1,921,809,382.89 × 348,731,242.43
  4. Step 4: Simplify right side
    1,281,335,720.51x = 670,194,973,808,861,312
  5. Step 5: Solve for x
    x = 670,194,973,808,861,312/1,281,335,720.51
  6. Step 6: Final answer
    x = 523,044,010.31

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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.