Home / 411,194,312.10-616,791,468.15-393,054,459.30

Finding the Fourth Proportional to 411,194,312.10, 616,791,468.15 and 393,054,459.30

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Solution

The fourth proportional to 411,194,312.10, 616,791,468.15 and 393,054,459.30 is: 589,581,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,194,312.10 : 616,791,468.15 = 393,054,459.30 : x
  2. Step 2: Convert to fraction form
    411,194,312.10/616,791,468.15 = 393,054,459.30/x
  3. Step 3: Cross multiply
    411,194,312.10x = 616,791,468.15 × 393,054,459.30
  4. Step 4: Simplify right side
    411,194,312.10x = 242,432,637,014,551,424
  5. Step 5: Solve for x
    x = 242,432,637,014,551,424/411,194,312.10
  6. Step 6: Final answer
    x = 589,581,688.95

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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.