Home / 1,129,312,929.60-1,693,969,394.40-819,376,538.40

Finding the Fourth Proportional to 1,129,312,929.60, 1,693,969,394.40 and 819,376,538.40

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Solution

The fourth proportional to 1,129,312,929.60, 1,693,969,394.40 and 819,376,538.40 is: 1,229,064,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,312,929.60 : 1,693,969,394.40 = 819,376,538.40 : x
  2. Step 2: Convert to fraction form
    1,129,312,929.60/1,693,969,394.40 = 819,376,538.40/x
  3. Step 3: Cross multiply
    1,129,312,929.60x = 1,693,969,394.40 × 819,376,538.40
  4. Step 4: Simplify right side
    1,129,312,929.60x = 1,387,998,778,539,016,448
  5. Step 5: Solve for x
    x = 1,387,998,778,539,016,448/1,129,312,929.60
  6. Step 6: Final answer
    x = 1,229,064,807.60

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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.