Home / 698,565,019.70-1,047,847,529.55-207,354,103.40

Finding the Fourth Proportional to 698,565,019.70, 1,047,847,529.55 and 207,354,103.40

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Solution

The fourth proportional to 698,565,019.70, 1,047,847,529.55 and 207,354,103.40 is: 311,031,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,565,019.70 : 1,047,847,529.55 = 207,354,103.40 : x
  2. Step 2: Convert to fraction form
    698,565,019.70/1,047,847,529.55 = 207,354,103.40/x
  3. Step 3: Cross multiply
    698,565,019.70x = 1,047,847,529.55 × 207,354,103.40
  4. Step 4: Simplify right side
    698,565,019.70x = 217,275,484,989,745,248
  5. Step 5: Solve for x
    x = 217,275,484,989,745,248/698,565,019.70
  6. Step 6: Final answer
    x = 311,031,155.10

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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.