Home / 12,121,915.47-18,182,430.34-3,602,030.51

Finding the Fourth Proportional to 12,121,915.47, 18,182,430.34 and 3,602,030.51

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Solution

The fourth proportional to 12,121,915.47, 18,182,430.34 and 3,602,030.51 is: 5,402,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121,915.47 : 18,182,430.34 = 3,602,030.51 : x
  2. Step 2: Convert to fraction form
    12,121,915.47/18,182,430.34 = 3,602,030.51/x
  3. Step 3: Cross multiply
    12,121,915.47x = 18,182,430.34 × 3,602,030.51
  4. Step 4: Simplify right side
    12,121,915.47x = 65,493,668,739,717.52
  5. Step 5: Solve for x
    x = 65,493,668,739,717.52/12,121,915.47
  6. Step 6: Final answer
    x = 5,402,914.16

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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.