Home / 1,268,547,185.39-1,750,573,636.52-711,618,275.03

Finding the Fourth Proportional to 1,268,547,185.39, 1,750,573,636.52 and 711,618,275.03

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Solution

The fourth proportional to 1,268,547,185.39, 1,750,573,636.52 and 711,618,275.03 is: 982,021,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,547,185.39 : 1,750,573,636.52 = 711,618,275.03 : x
  2. Step 2: Convert to fraction form
    1,268,547,185.39/1,750,573,636.52 = 711,618,275.03/x
  3. Step 3: Cross multiply
    1,268,547,185.39x = 1,750,573,636.52 × 711,618,275.03
  4. Step 4: Simplify right side
    1,268,547,185.39x = 1,245,740,191,521,045,760
  5. Step 5: Solve for x
    x = 1,245,740,191,521,045,760/1,268,547,185.39
  6. Step 6: Final answer
    x = 982,021,170.26

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Double scale
Find fourth proportional to 1,268,547,186.39, 1,750,573,637.89 and 711,618,276.03
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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.