Home / 19,132,457.80-28,698,686.70-11,958,004.30

Finding the Fourth Proportional to 19,132,457.80, 28,698,686.70 and 11,958,004.30

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Solution

The fourth proportional to 19,132,457.80, 28,698,686.70 and 11,958,004.30 is: 17,937,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132,457.80 : 28,698,686.70 = 11,958,004.30 : x
  2. Step 2: Convert to fraction form
    19,132,457.80/28,698,686.70 = 11,958,004.30/x
  3. Step 3: Cross multiply
    19,132,457.80x = 28,698,686.70 × 11,958,004.30
  4. Step 4: Simplify right side
    19,132,457.80x = 343,179,018,962,952.81
  5. Step 5: Solve for x
    x = 343,179,018,962,952.81/19,132,457.80
  6. Step 6: Final answer
    x = 17,937,006.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.