Home / 130,895,450.32-180,636,939.84-72,160,217.28

Finding the Fourth Proportional to 130,895,450.32, 180,636,939.84 and 72,160,217.28

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Solution

The fourth proportional to 130,895,450.32, 180,636,939.84 and 72,160,217.28 is: 99,581,771.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,895,450.32 : 180,636,939.84 = 72,160,217.28 : x
  2. Step 2: Convert to fraction form
    130,895,450.32/180,636,939.84 = 72,160,217.28/x
  3. Step 3: Cross multiply
    130,895,450.32x = 180,636,939.84 × 72,160,217.28
  4. Step 4: Simplify right side
    130,895,450.32x = 13,034,800,827,648,688
  5. Step 5: Solve for x
    x = 13,034,800,827,648,688/130,895,450.32
  6. Step 6: Final answer
    x = 99,581,771.53

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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.