Home / 18,398,905.02-25,390,656.86-10,139,263.66

Finding the Fourth Proportional to 18,398,905.02, 25,390,656.86 and 10,139,263.66

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Solution

The fourth proportional to 18,398,905.02, 25,390,656.86 and 10,139,263.66 is: 13,992,276.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398,905.02 : 25,390,656.86 = 10,139,263.66 : x
  2. Step 2: Convert to fraction form
    18,398,905.02/25,390,656.86 = 10,139,263.66/x
  3. Step 3: Cross multiply
    18,398,905.02x = 25,390,656.86 × 10,139,263.66
  4. Step 4: Simplify right side
    18,398,905.02x = 257,442,564,404,127.72
  5. Step 5: Solve for x
    x = 257,442,564,404,127.72/18,398,905.02
  6. Step 6: Final answer
    x = 13,992,276.39

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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.