Home / 781,323,415.34-1,170,452,772.74-453,109,384.86

Finding the Fourth Proportional to 781,323,415.34, 1,170,452,772.74 and 453,109,384.86

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Solution

The fourth proportional to 781,323,415.34, 1,170,452,772.74 and 453,109,384.86 is: 678,775,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,323,415.34 : 1,170,452,772.74 = 453,109,384.86 : x
  2. Step 2: Convert to fraction form
    781,323,415.34/1,170,452,772.74 = 453,109,384.86/x
  3. Step 3: Cross multiply
    781,323,415.34x = 1,170,452,772.74 × 453,109,384.86
  4. Step 4: Simplify right side
    781,323,415.34x = 530,343,135,861,637,184
  5. Step 5: Solve for x
    x = 530,343,135,861,637,184/781,323,415.34
  6. Step 6: Final answer
    x = 678,775,428.27

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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.