Home / 389,198,316,128.16-583,584,653,493.42-309,038,938,921.46

Finding the Fourth Proportional to 389,198,316,128.16, 583,584,653,493.42 and 309,038,938,921.46

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Solution

The fourth proportional to 389,198,316,128.16, 583,584,653,493.42 and 309,038,938,921.46 is: 463,389,420,284.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,198,316,128.16 : 583,584,653,493.42 = 309,038,938,921.46 : x
  2. Step 2: Convert to fraction form
    389,198,316,128.16/583,584,653,493.42 = 309,038,938,921.46/x
  3. Step 3: Cross multiply
    389,198,316,128.16x = 583,584,653,493.42 × 309,038,938,921.46
  4. Step 4: Simplify right side
    389,198,316,128.16x = 180,350,382,086,454,446,653,440
  5. Step 5: Solve for x
    x = 180,350,382,086,454,446,653,440/389,198,316,128.16
  6. Step 6: Final answer
    x = 463,389,420,284.82

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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.