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Finding the Fourth Proportional to 163,559,603.60, 245,131,008.60 and 86,919,347.60

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Solution

The fourth proportional to 163,559,603.60, 245,131,008.60 and 86,919,347.60 is: 130,268,274.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,559,603.60 : 245,131,008.60 = 86,919,347.60 : x
  2. Step 2: Convert to fraction form
    163,559,603.60/245,131,008.60 = 86,919,347.60/x
  3. Step 3: Cross multiply
    163,559,603.60x = 245,131,008.60 × 86,919,347.60
  4. Step 4: Simplify right side
    163,559,603.60x = 21,306,627,344,041,988
  5. Step 5: Solve for x
    x = 21,306,627,344,041,988/163,559,603.60
  6. Step 6: Final answer
    x = 130,268,274.53

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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.