Home / 420,602,361.90-580,462,678.35-242,040,985.26

Finding the Fourth Proportional to 420,602,361.90, 580,462,678.35 and 242,040,985.26

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Solution

The fourth proportional to 420,602,361.90, 580,462,678.35 and 242,040,985.26 is: 334,034,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,602,361.90 : 580,462,678.35 = 242,040,985.26 : x
  2. Step 2: Convert to fraction form
    420,602,361.90/580,462,678.35 = 242,040,985.26/x
  3. Step 3: Cross multiply
    420,602,361.90x = 580,462,678.35 × 242,040,985.26
  4. Step 4: Simplify right side
    420,602,361.90x = 140,495,758,574,492,464
  5. Step 5: Solve for x
    x = 140,495,758,574,492,464/420,602,361.90
  6. Step 6: Final answer
    x = 334,034,640.08

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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.