Home / 1,020,779,480.40-1,527,767,998.20-939,150,142.80

Finding the Fourth Proportional to 1,020,779,480.40, 1,527,767,998.20 and 939,150,142.80

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Solution

The fourth proportional to 1,020,779,480.40, 1,527,767,998.20 and 939,150,142.80 is: 1,405,595,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,779,480.40 : 1,527,767,998.20 = 939,150,142.80 : x
  2. Step 2: Convert to fraction form
    1,020,779,480.40/1,527,767,998.20 = 939,150,142.80/x
  3. Step 3: Cross multiply
    1,020,779,480.40x = 1,527,767,998.20 × 939,150,142.80
  4. Step 4: Simplify right side
    1,020,779,480.40x = 1,434,803,533,674,800,128
  5. Step 5: Solve for x
    x = 1,434,803,533,674,800,128/1,020,779,480.40
  6. Step 6: Final answer
    x = 1,405,595,979.57

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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.