Home / 99,835,920-149,734,941.12-48,666,476.16

Finding the Fourth Proportional to 99,835,920, 149,734,941.12 and 48,666,476.16

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Solution

The fourth proportional to 99,835,920, 149,734,941.12 and 48,666,476.16 is: 72,990,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,835,920 : 149,734,941.12 = 48,666,476.16 : x
  2. Step 2: Convert to fraction form
    99,835,920/149,734,941.12 = 48,666,476.16/x
  3. Step 3: Cross multiply
    99,835,920x = 149,734,941.12 × 48,666,476.16
  4. Step 4: Simplify right side
    99,835,920x = 7,287,071,942,335,483
  5. Step 5: Solve for x
    x = 7,287,071,942,335,483/99,835,920
  6. Step 6: Final answer
    x = 72,990,482.21

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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.