Home / 1,389,075,017.60-1,916,853,128.16-824,584,028.24

Finding the Fourth Proportional to 1,389,075,017.60, 1,916,853,128.16 and 824,584,028.24

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Solution

The fourth proportional to 1,389,075,017.60, 1,916,853,128.16 and 824,584,028.24 is: 1,137,884,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,075,017.60 : 1,916,853,128.16 = 824,584,028.24 : x
  2. Step 2: Convert to fraction form
    1,389,075,017.60/1,916,853,128.16 = 824,584,028.24/x
  3. Step 3: Cross multiply
    1,389,075,017.60x = 1,916,853,128.16 × 824,584,028.24
  4. Step 4: Simplify right side
    1,389,075,017.60x = 1,580,606,473,962,617,856
  5. Step 5: Solve for x
    x = 1,580,606,473,962,617,856/1,389,075,017.60
  6. Step 6: Final answer
    x = 1,137,884,170.35

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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.