Home / 665,323,687.11-918,429,393.58-414,551,978.00

Finding the Fourth Proportional to 665,323,687.11, 918,429,393.58 and 414,551,978.00

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Solution

The fourth proportional to 665,323,687.11, 918,429,393.58 and 414,551,978.00 is: 572,257,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,323,687.11 : 918,429,393.58 = 414,551,978.00 : x
  2. Step 2: Convert to fraction form
    665,323,687.11/918,429,393.58 = 414,551,978.00/x
  3. Step 3: Cross multiply
    665,323,687.11x = 918,429,393.58 × 414,551,978.00
  4. Step 4: Simplify right side
    665,323,687.11x = 380,736,721,763,189,184
  5. Step 5: Solve for x
    x = 380,736,721,763,189,184/665,323,687.11
  6. Step 6: Final answer
    x = 572,257,878.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.