Home / 103,138,681.96-154,725,648.54-42,521,271.40

Finding the Fourth Proportional to 103,138,681.96, 154,725,648.54 and 42,521,271.40

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Solution

The fourth proportional to 103,138,681.96, 154,725,648.54 and 42,521,271.40 is: 63,789,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,138,681.96 : 154,725,648.54 = 42,521,271.40 : x
  2. Step 2: Convert to fraction form
    103,138,681.96/154,725,648.54 = 42,521,271.40/x
  3. Step 3: Cross multiply
    103,138,681.96x = 154,725,648.54 × 42,521,271.40
  4. Step 4: Simplify right side
    103,138,681.96x = 6,579,131,294,110,353
  5. Step 5: Solve for x
    x = 6,579,131,294,110,353/103,138,681.96
  6. Step 6: Final answer
    x = 63,789,173.66

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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.