Home / 1,020,672,060.80-1,531,008,091.20-899,739,708.80

Finding the Fourth Proportional to 1,020,672,060.80, 1,531,008,091.20 and 899,739,708.80

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Solution

The fourth proportional to 1,020,672,060.80, 1,531,008,091.20 and 899,739,708.80 is: 1,349,609,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,672,060.80 : 1,531,008,091.20 = 899,739,708.80 : x
  2. Step 2: Convert to fraction form
    1,020,672,060.80/1,531,008,091.20 = 899,739,708.80/x
  3. Step 3: Cross multiply
    1,020,672,060.80x = 1,531,008,091.20 × 899,739,708.80
  4. Step 4: Simplify right side
    1,020,672,060.80x = 1,377,508,774,146,731,776
  5. Step 5: Solve for x
    x = 1,377,508,774,146,731,776/1,020,672,060.80
  6. Step 6: Final answer
    x = 1,349,609,563.20

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Double scale
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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.