Home / 851,810,986.50-1,175,510,582.80-480,531,869.70

Finding the Fourth Proportional to 851,810,986.50, 1,175,510,582.80 and 480,531,869.70

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Solution

The fourth proportional to 851,810,986.50, 1,175,510,582.80 and 480,531,869.70 is: 663,140,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,810,986.50 : 1,175,510,582.80 = 480,531,869.70 : x
  2. Step 2: Convert to fraction form
    851,810,986.50/1,175,510,582.80 = 480,531,869.70/x
  3. Step 3: Cross multiply
    851,810,986.50x = 1,175,510,582.80 × 480,531,869.70
  4. Step 4: Simplify right side
    851,810,986.50x = 564,870,298,205,020,608
  5. Step 5: Solve for x
    x = 564,870,298,205,020,608/851,810,986.50
  6. Step 6: Final answer
    x = 663,140,423.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.