Home / 165,430,672.80-248,146,009.20-139,602,640.20

Finding the Fourth Proportional to 165,430,672.80, 248,146,009.20 and 139,602,640.20

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Solution

The fourth proportional to 165,430,672.80, 248,146,009.20 and 139,602,640.20 is: 209,403,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,430,672.80 : 248,146,009.20 = 139,602,640.20 : x
  2. Step 2: Convert to fraction form
    165,430,672.80/248,146,009.20 = 139,602,640.20/x
  3. Step 3: Cross multiply
    165,430,672.80x = 248,146,009.20 × 139,602,640.20
  4. Step 4: Simplify right side
    165,430,672.80x = 34,641,838,039,413,484
  5. Step 5: Solve for x
    x = 34,641,838,039,413,484/165,430,672.80
  6. Step 6: Final answer
    x = 209,403,960.30

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1.5x scale

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.