Home / 90,837,701.10-136,256,551.65-66,444,559.20

Finding the Fourth Proportional to 90,837,701.10, 136,256,551.65 and 66,444,559.20

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Solution

The fourth proportional to 90,837,701.10, 136,256,551.65 and 66,444,559.20 is: 99,666,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,837,701.10 : 136,256,551.65 = 66,444,559.20 : x
  2. Step 2: Convert to fraction form
    90,837,701.10/136,256,551.65 = 66,444,559.20/x
  3. Step 3: Cross multiply
    90,837,701.10x = 136,256,551.65 × 66,444,559.20
  4. Step 4: Simplify right side
    90,837,701.10x = 9,053,506,512,496,284
  5. Step 5: Solve for x
    x = 9,053,506,512,496,284/90,837,701.10
  6. Step 6: Final answer
    x = 99,666,838.80

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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.