Home / 1,913,265,095.40-2,869,897,683.60-459,242,519.40

Finding the Fourth Proportional to 1,913,265,095.40, 2,869,897,683.60 and 459,242,519.40

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Solution

The fourth proportional to 1,913,265,095.40, 2,869,897,683.60 and 459,242,519.40 is: 688,863,788.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,265,095.40 : 2,869,897,683.60 = 459,242,519.40 : x
  2. Step 2: Convert to fraction form
    1,913,265,095.40/2,869,897,683.60 = 459,242,519.40/x
  3. Step 3: Cross multiply
    1,913,265,095.40x = 2,869,897,683.60 × 459,242,519.40
  4. Step 4: Simplify right side
    1,913,265,095.40x = 1,317,979,042,636,687,872
  5. Step 5: Solve for x
    x = 1,317,979,042,636,687,872/1,913,265,095.40
  6. Step 6: Final answer
    x = 688,863,788.82

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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.