Home / 130,880,874.24-180,623,687.40-72,143,407.08

Finding the Fourth Proportional to 130,880,874.24, 180,623,687.40 and 72,143,407.08

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Solution

The fourth proportional to 130,880,874.24, 180,623,687.40 and 72,143,407.08 is: 99,562,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,880,874.24 : 180,623,687.40 = 72,143,407.08 : x
  2. Step 2: Convert to fraction form
    130,880,874.24/180,623,687.40 = 72,143,407.08/x
  3. Step 3: Cross multiply
    130,880,874.24x = 180,623,687.40 × 72,143,407.08
  4. Step 4: Simplify right side
    130,880,874.24x = 13,030,808,208,388,866
  5. Step 5: Solve for x
    x = 13,030,808,208,388,866/130,880,874.24
  6. Step 6: Final answer
    x = 99,562,356.10

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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.