Home / 85,514,547.81-128,281,910.67-64,085,352.01

Finding the Fourth Proportional to 85,514,547.81, 128,281,910.67 and 64,085,352.01

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Solution

The fourth proportional to 85,514,547.81, 128,281,910.67 and 64,085,352.01 is: 96,135,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514,547.81 : 128,281,910.67 = 64,085,352.01 : x
  2. Step 2: Convert to fraction form
    85,514,547.81/128,281,910.67 = 64,085,352.01/x
  3. Step 3: Cross multiply
    85,514,547.81x = 128,281,910.67 × 64,085,352.01
  4. Step 4: Simplify right side
    85,514,547.81x = 8,220,991,401,662,269
  5. Step 5: Solve for x
    x = 8,220,991,401,662,269/85,514,547.81
  6. Step 6: Final answer
    x = 96,135,588.77

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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.