Home / 874,891,205.40-1,312,336,808.10-808,378,411.80

Finding the Fourth Proportional to 874,891,205.40, 1,312,336,808.10 and 808,378,411.80

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Solution

The fourth proportional to 874,891,205.40, 1,312,336,808.10 and 808,378,411.80 is: 1,212,567,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,891,205.40 : 1,312,336,808.10 = 808,378,411.80 : x
  2. Step 2: Convert to fraction form
    874,891,205.40/1,312,336,808.10 = 808,378,411.80/x
  3. Step 3: Cross multiply
    874,891,205.40x = 1,312,336,808.10 × 808,378,411.80
  4. Step 4: Simplify right side
    874,891,205.40x = 1,060,864,744,678,559,232
  5. Step 5: Solve for x
    x = 1,060,864,744,678,559,232/874,891,205.40
  6. Step 6: Final answer
    x = 1,212,567,617.70

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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.