Home / 18,989,416.16-28,484,124.59-4,612,387.06

Finding the Fourth Proportional to 18,989,416.16, 28,484,124.59 and 4,612,387.06

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Solution

The fourth proportional to 18,989,416.16, 28,484,124.59 and 4,612,387.06 is: 6,918,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989,416.16 : 28,484,124.59 = 4,612,387.06 : x
  2. Step 2: Convert to fraction form
    18,989,416.16/28,484,124.59 = 4,612,387.06/x
  3. Step 3: Cross multiply
    18,989,416.16x = 28,484,124.59 × 4,612,387.06
  4. Step 4: Simplify right side
    18,989,416.16x = 131,379,807,674,343.80
  5. Step 5: Solve for x
    x = 131,379,807,674,343.80/18,989,416.16
  6. Step 6: Final answer
    x = 6,918,580.68

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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.