Home / 130,880,896.92-180,623,718.54-72,143,429.58

Finding the Fourth Proportional to 130,880,896.92, 180,623,718.54 and 72,143,429.58

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Solution

The fourth proportional to 130,880,896.92, 180,623,718.54 and 72,143,429.58 is: 99,562,387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,880,896.92 : 180,623,718.54 = 72,143,429.58 : x
  2. Step 2: Convert to fraction form
    130,880,896.92/180,623,718.54 = 72,143,429.58/x
  3. Step 3: Cross multiply
    130,880,896.92x = 180,623,718.54 × 72,143,429.58
  4. Step 4: Simplify right side
    130,880,896.92x = 13,030,814,518,968,230
  5. Step 5: Solve for x
    x = 13,030,814,518,968,230/130,880,896.92
  6. Step 6: Final answer
    x = 99,562,387.07

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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.