Home / 74,680,009.10-112,020,013.65-74,201,712.20

Finding the Fourth Proportional to 74,680,009.10, 112,020,013.65 and 74,201,712.20

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Solution

The fourth proportional to 74,680,009.10, 112,020,013.65 and 74,201,712.20 is: 111,302,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,680,009.10 : 112,020,013.65 = 74,201,712.20 : x
  2. Step 2: Convert to fraction form
    74,680,009.10/112,020,013.65 = 74,201,712.20/x
  3. Step 3: Cross multiply
    74,680,009.10x = 112,020,013.65 × 74,201,712.20
  4. Step 4: Simplify right side
    74,680,009.10x = 8,312,076,813,497,372
  5. Step 5: Solve for x
    x = 8,312,076,813,497,372/74,680,009.10
  6. Step 6: Final answer
    x = 111,302,568.30

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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.