Home / 20,374,461.76-28,157,081.88-16,697,580.16

Finding the Fourth Proportional to 20,374,461.76, 28,157,081.88 and 16,697,580.16

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Solution

The fourth proportional to 20,374,461.76, 28,157,081.88 and 16,697,580.16 is: 23,075,708.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374,461.76 : 28,157,081.88 = 16,697,580.16 : x
  2. Step 2: Convert to fraction form
    20,374,461.76/28,157,081.88 = 16,697,580.16/x
  3. Step 3: Cross multiply
    20,374,461.76x = 28,157,081.88 × 16,697,580.16
  4. Step 4: Simplify right side
    20,374,461.76x = 470,155,131,762,983.50
  5. Step 5: Solve for x
    x = 470,155,131,762,983.50/20,374,461.76
  6. Step 6: Final answer
    x = 23,075,708.08

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1.5x scale

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.