Home / 879,688,312.88-1,213,899,075.96-508,434,390.32

Finding the Fourth Proportional to 879,688,312.88, 1,213,899,075.96 and 508,434,390.32

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Solution

The fourth proportional to 879,688,312.88, 1,213,899,075.96 and 508,434,390.32 is: 701,598,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,688,312.88 : 1,213,899,075.96 = 508,434,390.32 : x
  2. Step 2: Convert to fraction form
    879,688,312.88/1,213,899,075.96 = 508,434,390.32/x
  3. Step 3: Cross multiply
    879,688,312.88x = 1,213,899,075.96 × 508,434,390.32
  4. Step 4: Simplify right side
    879,688,312.88x = 617,188,036,595,734,016
  5. Step 5: Solve for x
    x = 617,188,036,595,734,016/879,688,312.88
  6. Step 6: Final answer
    x = 701,598,540.71

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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.