Home / 866,205,009.60-1,299,307,514.40-672,713,246.40

Finding the Fourth Proportional to 866,205,009.60, 1,299,307,514.40 and 672,713,246.40

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Solution

The fourth proportional to 866,205,009.60, 1,299,307,514.40 and 672,713,246.40 is: 1,009,069,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,205,009.60 : 1,299,307,514.40 = 672,713,246.40 : x
  2. Step 2: Convert to fraction form
    866,205,009.60/1,299,307,514.40 = 672,713,246.40/x
  3. Step 3: Cross multiply
    866,205,009.60x = 1,299,307,514.40 × 672,713,246.40
  4. Step 4: Simplify right side
    866,205,009.60x = 874,061,376,083,938,816
  5. Step 5: Solve for x
    x = 874,061,376,083,938,816/866,205,009.60
  6. Step 6: Final answer
    x = 1,009,069,869.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.