Home / 139,066,342.40-208,598,476.80-42,021,862.40

Finding the Fourth Proportional to 139,066,342.40, 208,598,476.80 and 42,021,862.40

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Solution

The fourth proportional to 139,066,342.40, 208,598,476.80 and 42,021,862.40 is: 63,032,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,066,342.40 : 208,598,476.80 = 42,021,862.40 : x
  2. Step 2: Convert to fraction form
    139,066,342.40/208,598,476.80 = 42,021,862.40/x
  3. Step 3: Cross multiply
    139,066,342.40x = 208,598,476.80 × 42,021,862.40
  4. Step 4: Simplify right side
    139,066,342.40x = 8,765,696,488,939,193
  5. Step 5: Solve for x
    x = 8,765,696,488,939,193/139,066,342.40
  6. Step 6: Final answer
    x = 63,032,480.31

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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.