Home / 1,389,075,102.16-1,916,853,244.74-824,584,112.80

Finding the Fourth Proportional to 1,389,075,102.16, 1,916,853,244.74 and 824,584,112.80

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Solution

The fourth proportional to 1,389,075,102.16, 1,916,853,244.74 and 824,584,112.80 is: 1,137,884,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,075,102.16 : 1,916,853,244.74 = 824,584,112.80 : x
  2. Step 2: Convert to fraction form
    1,389,075,102.16/1,916,853,244.74 = 824,584,112.80/x
  3. Step 3: Cross multiply
    1,389,075,102.16x = 1,916,853,244.74 × 824,584,112.80
  4. Step 4: Simplify right side
    1,389,075,102.16x = 1,580,606,732,181,734,144
  5. Step 5: Solve for x
    x = 1,580,606,732,181,734,144/1,389,075,102.16
  6. Step 6: Final answer
    x = 1,137,884,286.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.