Home / 1,211,969,274.70-1,818,030,715.53-512,331,018.16

Finding the Fourth Proportional to 1,211,969,274.70, 1,818,030,715.53 and 512,331,018.16

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Solution

The fourth proportional to 1,211,969,274.70, 1,818,030,715.53 and 512,331,018.16 is: 768,528,994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,969,274.70 : 1,818,030,715.53 = 512,331,018.16 : x
  2. Step 2: Convert to fraction form
    1,211,969,274.70/1,818,030,715.53 = 512,331,018.16/x
  3. Step 3: Cross multiply
    1,211,969,274.70x = 1,818,030,715.53 × 512,331,018.16
  4. Step 4: Simplify right side
    1,211,969,274.70x = 931,433,527,533,638,272
  5. Step 5: Solve for x
    x = 931,433,527,533,638,272/1,211,969,274.70
  6. Step 6: Final answer
    x = 768,528,994.07

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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.