Home / 870,965,510.40-1,306,448,265.60-503,633,491.20

Finding the Fourth Proportional to 870,965,510.40, 1,306,448,265.60 and 503,633,491.20

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Solution

The fourth proportional to 870,965,510.40, 1,306,448,265.60 and 503,633,491.20 is: 755,450,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,965,510.40 : 1,306,448,265.60 = 503,633,491.20 : x
  2. Step 2: Convert to fraction form
    870,965,510.40/1,306,448,265.60 = 503,633,491.20/x
  3. Step 3: Cross multiply
    870,965,510.40x = 1,306,448,265.60 × 503,633,491.20
  4. Step 4: Simplify right side
    870,965,510.40x = 657,971,101,076,312,832
  5. Step 5: Solve for x
    x = 657,971,101,076,312,832/870,965,510.40
  6. Step 6: Final answer
    x = 755,450,236.80

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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.