Home / 85,698,818.10-128,548,227.15-73,369,386.90

Finding the Fourth Proportional to 85,698,818.10, 128,548,227.15 and 73,369,386.90

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Solution

The fourth proportional to 85,698,818.10, 128,548,227.15 and 73,369,386.90 is: 110,054,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,698,818.10 : 128,548,227.15 = 73,369,386.90 : x
  2. Step 2: Convert to fraction form
    85,698,818.10/128,548,227.15 = 73,369,386.90/x
  3. Step 3: Cross multiply
    85,698,818.10x = 128,548,227.15 × 73,369,386.90
  4. Step 4: Simplify right side
    85,698,818.10x = 9,431,504,613,077,436
  5. Step 5: Solve for x
    x = 9,431,504,613,077,436/85,698,818.10
  6. Step 6: Final answer
    x = 110,054,080.35

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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.