Home / 122,735,128.51-169,378,064.81-66,984,127.00

Finding the Fourth Proportional to 122,735,128.51, 169,378,064.81 and 66,984,127.00

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Solution

The fourth proportional to 122,735,128.51, 169,378,064.81 and 66,984,127.00 is: 92,440,053.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,735,128.51 : 169,378,064.81 = 66,984,127.00 : x
  2. Step 2: Convert to fraction form
    122,735,128.51/169,378,064.81 = 66,984,127.00/x
  3. Step 3: Cross multiply
    122,735,128.51x = 169,378,064.81 × 66,984,127.00
  4. Step 4: Simplify right side
    122,735,128.51x = 11,345,641,803,740,096
  5. Step 5: Solve for x
    x = 11,345,641,803,740,096/122,735,128.51
  6. Step 6: Final answer
    x = 92,440,053.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.