Home / 85,537,362.20-128,054,100.90-80,554,501.40

Finding the Fourth Proportional to 85,537,362.20, 128,054,100.90 and 80,554,501.40

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Solution

The fourth proportional to 85,537,362.20, 128,054,100.90 and 80,554,501.40 is: 120,594,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,537,362.20 : 128,054,100.90 = 80,554,501.40 : x
  2. Step 2: Convert to fraction form
    85,537,362.20/128,054,100.90 = 80,554,501.40/x
  3. Step 3: Cross multiply
    85,537,362.20x = 128,054,100.90 × 80,554,501.40
  4. Step 4: Simplify right side
    85,537,362.20x = 10,315,334,250,224,792
  5. Step 5: Solve for x
    x = 10,315,334,250,224,792/85,537,362.20
  6. Step 6: Final answer
    x = 120,594,486.26

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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.