Home / 65,430,052.52-90,281,036.58-39,315,041.78

Finding the Fourth Proportional to 65,430,052.52, 90,281,036.58 and 39,315,041.78

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Solution

The fourth proportional to 65,430,052.52, 90,281,036.58 and 39,315,041.78 is: 54,247,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,430,052.52 : 90,281,036.58 = 39,315,041.78 : x
  2. Step 2: Convert to fraction form
    65,430,052.52/90,281,036.58 = 39,315,041.78/x
  3. Step 3: Cross multiply
    65,430,052.52x = 90,281,036.58 × 39,315,041.78
  4. Step 4: Simplify right side
    65,430,052.52x = 3,549,402,725,084,408.50
  5. Step 5: Solve for x
    x = 3,549,402,725,084,408.50/65,430,052.52
  6. Step 6: Final answer
    x = 54,247,285.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.