Home / 98,415,320.40-147,622,980.60-72,906,152.40

Finding the Fourth Proportional to 98,415,320.40, 147,622,980.60 and 72,906,152.40

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Solution

The fourth proportional to 98,415,320.40, 147,622,980.60 and 72,906,152.40 is: 109,359,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,320.40 : 147,622,980.60 = 72,906,152.40 : x
  2. Step 2: Convert to fraction form
    98,415,320.40/147,622,980.60 = 72,906,152.40/x
  3. Step 3: Cross multiply
    98,415,320.40x = 147,622,980.60 × 72,906,152.40
  4. Step 4: Simplify right side
    98,415,320.40x = 10,762,623,521,365,844
  5. Step 5: Solve for x
    x = 10,762,623,521,365,844/98,415,320.40
  6. Step 6: Final answer
    x = 109,359,228.60

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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.