Home / 1,128,520,045.48-1,557,216,639.30-626,660,595.88

Finding the Fourth Proportional to 1,128,520,045.48, 1,557,216,639.30 and 626,660,595.88

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Solution

The fourth proportional to 1,128,520,045.48, 1,557,216,639.30 and 626,660,595.88 is: 864,713,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,520,045.48 : 1,557,216,639.30 = 626,660,595.88 : x
  2. Step 2: Convert to fraction form
    1,128,520,045.48/1,557,216,639.30 = 626,660,595.88/x
  3. Step 3: Cross multiply
    1,128,520,045.48x = 1,557,216,639.30 × 626,660,595.88
  4. Step 4: Simplify right side
    1,128,520,045.48x = 975,846,307,097,988,992
  5. Step 5: Solve for x
    x = 975,846,307,097,988,992/1,128,520,045.48
  6. Step 6: Final answer
    x = 864,713,312.81

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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.