Home / 145,495,307.40-218,242,961.10-123,702,904.91

Finding the Fourth Proportional to 145,495,307.40, 218,242,961.10 and 123,702,904.91

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Solution

The fourth proportional to 145,495,307.40, 218,242,961.10 and 123,702,904.91 is: 185,554,357.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,495,307.40 : 218,242,961.10 = 123,702,904.91 : x
  2. Step 2: Convert to fraction form
    145,495,307.40/218,242,961.10 = 123,702,904.91/x
  3. Step 3: Cross multiply
    145,495,307.40x = 218,242,961.10 × 123,702,904.91
  4. Step 4: Simplify right side
    145,495,307.40x = 26,997,288,263,138,912
  5. Step 5: Solve for x
    x = 26,997,288,263,138,912/145,495,307.40
  6. Step 6: Final answer
    x = 185,554,357.36

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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.