Home / 30,108,025.80-45,162,038.70-9,910,643.40

Finding the Fourth Proportional to 30,108,025.80, 45,162,038.70 and 9,910,643.40

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Solution

The fourth proportional to 30,108,025.80, 45,162,038.70 and 9,910,643.40 is: 14,865,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,108,025.80 : 45,162,038.70 = 9,910,643.40 : x
  2. Step 2: Convert to fraction form
    30,108,025.80/45,162,038.70 = 9,910,643.40/x
  3. Step 3: Cross multiply
    30,108,025.80x = 45,162,038.70 × 9,910,643.40
  4. Step 4: Simplify right side
    30,108,025.80x = 447,584,860,772,699.62
  5. Step 5: Solve for x
    x = 447,584,860,772,699.62/30,108,025.80
  6. Step 6: Final answer
    x = 14,865,965.10

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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.