Home / 663,818,638.40-916,071,077.64-366,461,289.60

Finding the Fourth Proportional to 663,818,638.40, 916,071,077.64 and 366,461,289.60

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Solution

The fourth proportional to 663,818,638.40, 916,071,077.64 and 366,461,289.60 is: 505,717,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,818,638.40 : 916,071,077.64 = 366,461,289.60 : x
  2. Step 2: Convert to fraction form
    663,818,638.40/916,071,077.64 = 366,461,289.60/x
  3. Step 3: Cross multiply
    663,818,638.40x = 916,071,077.64 × 366,461,289.60
  4. Step 4: Simplify right side
    663,818,638.40x = 335,704,588,477,216,128
  5. Step 5: Solve for x
    x = 335,704,588,477,216,128/663,818,638.40
  6. Step 6: Final answer
    x = 505,717,328.59

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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.