Home / 1,125,047,577.28-1,553,103,971.76-749,329,427.20

Finding the Fourth Proportional to 1,125,047,577.28, 1,553,103,971.76 and 749,329,427.20

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Solution

The fourth proportional to 1,125,047,577.28, 1,553,103,971.76 and 749,329,427.20 is: 1,034,433,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,047,577.28 : 1,553,103,971.76 = 749,329,427.20 : x
  2. Step 2: Convert to fraction form
    1,125,047,577.28/1,553,103,971.76 = 749,329,427.20/x
  3. Step 3: Cross multiply
    1,125,047,577.28x = 1,553,103,971.76 × 749,329,427.20
  4. Step 4: Simplify right side
    1,125,047,577.28x = 1,163,786,509,540,965,888
  5. Step 5: Solve for x
    x = 1,163,786,509,540,965,888/1,125,047,577.28
  6. Step 6: Final answer
    x = 1,034,433,150.24

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Double scale
Find fourth proportional to 1,125,047,578.28, 1,553,103,973.14 and 749,329,428.20
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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.