Home / 258,990,118.60-388,507,296.30-88,789,030.60

Finding the Fourth Proportional to 258,990,118.60, 388,507,296.30 and 88,789,030.60

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Solution

The fourth proportional to 258,990,118.60, 388,507,296.30 and 88,789,030.60 is: 133,191,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,990,118.60 : 388,507,296.30 = 88,789,030.60 : x
  2. Step 2: Convert to fraction form
    258,990,118.60/388,507,296.30 = 88,789,030.60/x
  3. Step 3: Cross multiply
    258,990,118.60x = 388,507,296.30 × 88,789,030.60
  4. Step 4: Simplify right side
    258,990,118.60x = 34,495,186,219,503,964
  5. Step 5: Solve for x
    x = 34,495,186,219,503,964/258,990,118.60
  6. Step 6: Final answer
    x = 133,191,128.70

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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.