Home / 13,602,004.64-18,770,580.95-7,721,587.68

Finding the Fourth Proportional to 13,602,004.64, 18,770,580.95 and 7,721,587.68

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Solution

The fourth proportional to 13,602,004.64, 18,770,580.95 and 7,721,587.68 is: 10,655,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602,004.64 : 18,770,580.95 = 7,721,587.68 : x
  2. Step 2: Convert to fraction form
    13,602,004.64/18,770,580.95 = 7,721,587.68/x
  3. Step 3: Cross multiply
    13,602,004.64x = 18,770,580.95 × 7,721,587.68
  4. Step 4: Simplify right side
    13,602,004.64x = 144,938,686,572,357.62
  5. Step 5: Solve for x
    x = 144,938,686,572,357.62/13,602,004.64
  6. Step 6: Final answer
    x = 10,655,685.72

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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.