Home / 315,202,820.10-472,804,230.15-99,792,068.10

Finding the Fourth Proportional to 315,202,820.10, 472,804,230.15 and 99,792,068.10

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Solution

The fourth proportional to 315,202,820.10, 472,804,230.15 and 99,792,068.10 is: 149,688,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,202,820.10 : 472,804,230.15 = 99,792,068.10 : x
  2. Step 2: Convert to fraction form
    315,202,820.10/472,804,230.15 = 99,792,068.10/x
  3. Step 3: Cross multiply
    315,202,820.10x = 472,804,230.15 × 99,792,068.10
  4. Step 4: Simplify right side
    315,202,820.10x = 47,182,111,933,096,872
  5. Step 5: Solve for x
    x = 47,182,111,933,096,872/315,202,820.10
  6. Step 6: Final answer
    x = 149,688,102.15

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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.