Home / 1,316,327,428.90-1,974,783,435.90-442,904,145.40

Finding the Fourth Proportional to 1,316,327,428.90, 1,974,783,435.90 and 442,904,145.40

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Solution

The fourth proportional to 1,316,327,428.90, 1,974,783,435.90 and 442,904,145.40 is: 664,454,565.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,327,428.90 : 1,974,783,435.90 = 442,904,145.40 : x
  2. Step 2: Convert to fraction form
    1,316,327,428.90/1,974,783,435.90 = 442,904,145.40/x
  3. Step 3: Cross multiply
    1,316,327,428.90x = 1,974,783,435.90 × 442,904,145.40
  4. Step 4: Simplify right side
    1,316,327,428.90x = 874,639,770,027,365,120
  5. Step 5: Solve for x
    x = 874,639,770,027,365,120/1,316,327,428.90
  6. Step 6: Final answer
    x = 664,454,565.65

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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.