Home / 868,879,256.40-1,303,381,870.20-523,088,312.40

Finding the Fourth Proportional to 868,879,256.40, 1,303,381,870.20 and 523,088,312.40

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Solution

The fourth proportional to 868,879,256.40, 1,303,381,870.20 and 523,088,312.40 is: 784,670,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,879,256.40 : 1,303,381,870.20 = 523,088,312.40 : x
  2. Step 2: Convert to fraction form
    868,879,256.40/1,303,381,870.20 = 523,088,312.40/x
  3. Step 3: Cross multiply
    868,879,256.40x = 1,303,381,870.20 × 523,088,312.40
  4. Step 4: Simplify right side
    868,879,256.40x = 681,783,822,895,673,856
  5. Step 5: Solve for x
    x = 681,783,822,895,673,856/868,879,256.40
  6. Step 6: Final answer
    x = 784,670,387.60

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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.