Home / 1,120,163,653.90-1,680,231,965.01-291,043,931.14

Finding the Fourth Proportional to 1,120,163,653.90, 1,680,231,965.01 and 291,043,931.14

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Solution

The fourth proportional to 1,120,163,653.90, 1,680,231,965.01 and 291,043,931.14 is: 436,562,384.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,163,653.90 : 1,680,231,965.01 = 291,043,931.14 : x
  2. Step 2: Convert to fraction form
    1,120,163,653.90/1,680,231,965.01 = 291,043,931.14/x
  3. Step 3: Cross multiply
    1,120,163,653.90x = 1,680,231,965.01 × 291,043,931.14
  4. Step 4: Simplify right side
    1,120,163,653.90x = 489,021,316,323,597,312
  5. Step 5: Solve for x
    x = 489,021,316,323,597,312/1,120,163,653.90
  6. Step 6: Final answer
    x = 436,562,384.99

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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.