Home / 864,077,985.48-1,295,592,112.55-338,817,816.54

Finding the Fourth Proportional to 864,077,985.48, 1,295,592,112.55 and 338,817,816.54

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Solution

The fourth proportional to 864,077,985.48, 1,295,592,112.55 and 338,817,816.54 is: 508,020,917.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,077,985.48 : 1,295,592,112.55 = 338,817,816.54 : x
  2. Step 2: Convert to fraction form
    864,077,985.48/1,295,592,112.55 = 338,817,816.54/x
  3. Step 3: Cross multiply
    864,077,985.48x = 1,295,592,112.55 × 338,817,816.54
  4. Step 4: Simplify right side
    864,077,985.48x = 438,969,690,701,484,032
  5. Step 5: Solve for x
    x = 438,969,690,701,484,032/864,077,985.48
  6. Step 6: Final answer
    x = 508,020,917.18

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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.