Home / 1,020,779,715.90-1,527,768,351.45-939,150,378.30

Finding the Fourth Proportional to 1,020,779,715.90, 1,527,768,351.45 and 939,150,378.30

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Solution

The fourth proportional to 1,020,779,715.90, 1,527,768,351.45 and 939,150,378.30 is: 1,405,596,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,779,715.90 : 1,527,768,351.45 = 939,150,378.30 : x
  2. Step 2: Convert to fraction form
    1,020,779,715.90/1,527,768,351.45 = 939,150,378.30/x
  3. Step 3: Cross multiply
    1,020,779,715.90x = 1,527,768,351.45 × 939,150,378.30
  4. Step 4: Simplify right side
    1,020,779,715.90x = 1,434,804,225,219,034,880
  5. Step 5: Solve for x
    x = 1,434,804,225,219,034,880/1,020,779,715.90
  6. Step 6: Final answer
    x = 1,405,596,332.75

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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.