Home / 15,685,869.70-21,642,953.56-9,490,762.35

Finding the Fourth Proportional to 15,685,869.70, 21,642,953.56 and 9,490,762.35

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Solution

The fourth proportional to 15,685,869.70, 21,642,953.56 and 9,490,762.35 is: 13,095,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685,869.70 : 21,642,953.56 = 9,490,762.35 : x
  2. Step 2: Convert to fraction form
    15,685,869.70/21,642,953.56 = 9,490,762.35/x
  3. Step 3: Cross multiply
    15,685,869.70x = 21,642,953.56 × 9,490,762.35
  4. Step 4: Simplify right side
    15,685,869.70x = 205,408,128,766,319.56
  5. Step 5: Solve for x
    x = 205,408,128,766,319.56/15,685,869.70
  6. Step 6: Final answer
    x = 13,095,106.15

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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.