Home / 411,748,672.80-617,623,009.20-139,115,503.20

Finding the Fourth Proportional to 411,748,672.80, 617,623,009.20 and 139,115,503.20

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Solution

The fourth proportional to 411,748,672.80, 617,623,009.20 and 139,115,503.20 is: 208,673,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,748,672.80 : 617,623,009.20 = 139,115,503.20 : x
  2. Step 2: Convert to fraction form
    411,748,672.80/617,623,009.20 = 139,115,503.20/x
  3. Step 3: Cross multiply
    411,748,672.80x = 617,623,009.20 × 139,115,503.20
  4. Step 4: Simplify right side
    411,748,672.80x = 85,920,935,712,756,224
  5. Step 5: Solve for x
    x = 85,920,935,712,756,224/411,748,672.80
  6. Step 6: Final answer
    x = 208,673,254.80

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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.