Home / 423,117,107.47-631,826,478.81-345,547,999.88

Finding the Fourth Proportional to 423,117,107.47, 631,826,478.81 and 345,547,999.88

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Solution

The fourth proportional to 423,117,107.47, 631,826,478.81 and 345,547,999.88 is: 515,995,151.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,117,107.47 : 631,826,478.81 = 345,547,999.88 : x
  2. Step 2: Convert to fraction form
    423,117,107.47/631,826,478.81 = 345,547,999.88/x
  3. Step 3: Cross multiply
    423,117,107.47x = 631,826,478.81 × 345,547,999.88
  4. Step 4: Simplify right side
    423,117,107.47x = 218,326,376,023,228,928
  5. Step 5: Solve for x
    x = 218,326,376,023,228,928/423,117,107.47
  6. Step 6: Final answer
    x = 515,995,151.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.