Home / 1,128,520,047.98-1,557,216,642.75-626,660,598.38

Finding the Fourth Proportional to 1,128,520,047.98, 1,557,216,642.75 and 626,660,598.38

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Solution

The fourth proportional to 1,128,520,047.98, 1,557,216,642.75 and 626,660,598.38 is: 864,713,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,520,047.98 : 1,557,216,642.75 = 626,660,598.38 : x
  2. Step 2: Convert to fraction form
    1,128,520,047.98/1,557,216,642.75 = 626,660,598.38/x
  3. Step 3: Cross multiply
    1,128,520,047.98x = 1,557,216,642.75 × 626,660,598.38
  4. Step 4: Simplify right side
    1,128,520,047.98x = 975,846,313,153,009,664
  5. Step 5: Solve for x
    x = 975,846,313,153,009,664/1,128,520,047.98
  6. Step 6: Final answer
    x = 864,713,316.26

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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.