Home / 288,014,535.60-432,021,803.40-72,603,783.60

Finding the Fourth Proportional to 288,014,535.60, 432,021,803.40 and 72,603,783.60

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Solution

The fourth proportional to 288,014,535.60, 432,021,803.40 and 72,603,783.60 is: 108,905,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,014,535.60 : 432,021,803.40 = 72,603,783.60 : x
  2. Step 2: Convert to fraction form
    288,014,535.60/432,021,803.40 = 72,603,783.60/x
  3. Step 3: Cross multiply
    288,014,535.60x = 432,021,803.40 × 72,603,783.60
  4. Step 4: Simplify right side
    288,014,535.60x = 31,366,417,524,535,340
  5. Step 5: Solve for x
    x = 31,366,417,524,535,340/288,014,535.60
  6. Step 6: Final answer
    x = 108,905,675.40

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Double scale
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Similar ratio
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1.5x scale

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.