Home / 939,731,075.40-1,409,596,613.10-800,658,870.60

Finding the Fourth Proportional to 939,731,075.40, 1,409,596,613.10 and 800,658,870.60

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Solution

The fourth proportional to 939,731,075.40, 1,409,596,613.10 and 800,658,870.60 is: 1,200,988,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,731,075.40 : 1,409,596,613.10 = 800,658,870.60 : x
  2. Step 2: Convert to fraction form
    939,731,075.40/1,409,596,613.10 = 800,658,870.60/x
  3. Step 3: Cross multiply
    939,731,075.40x = 1,409,596,613.10 × 800,658,870.60
  4. Step 4: Simplify right side
    939,731,075.40x = 1,128,606,032,246,231,168
  5. Step 5: Solve for x
    x = 1,128,606,032,246,231,168/939,731,075.40
  6. Step 6: Final answer
    x = 1,200,988,305.90

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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.