Home / 130,880,904.96-180,623,729.60-72,143,437.60

Finding the Fourth Proportional to 130,880,904.96, 180,623,729.60 and 72,143,437.60

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Solution

The fourth proportional to 130,880,904.96, 180,623,729.60 and 72,143,437.60 is: 99,562,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,880,904.96 : 180,623,729.60 = 72,143,437.60 : x
  2. Step 2: Convert to fraction form
    130,880,904.96/180,623,729.60 = 72,143,437.60/x
  3. Step 3: Cross multiply
    130,880,904.96x = 180,623,729.60 × 72,143,437.60
  4. Step 4: Simplify right side
    130,880,904.96x = 13,030,816,765,476,872
  5. Step 5: Solve for x
    x = 13,030,816,765,476,872/130,880,904.96
  6. Step 6: Final answer
    x = 99,562,398.12

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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.