Home / 130,745,705.10-180,437,233.26-72,008,355.33

Finding the Fourth Proportional to 130,745,705.10, 180,437,233.26 and 72,008,355.33

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Solution

The fourth proportional to 130,745,705.10, 180,437,233.26 and 72,008,355.33 is: 99,376,024.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,745,705.10 : 180,437,233.26 = 72,008,355.33 : x
  2. Step 2: Convert to fraction form
    130,745,705.10/180,437,233.26 = 72,008,355.33/x
  3. Step 3: Cross multiply
    130,745,705.10x = 180,437,233.26 × 72,008,355.33
  4. Step 4: Simplify right side
    130,745,705.10x = 12,992,988,407,348,174
  5. Step 5: Solve for x
    x = 12,992,988,407,348,174/130,745,705.10
  6. Step 6: Final answer
    x = 99,376,024.61

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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.