Home / 86,241,031,862.40-129,361,547,793.60-20,883,814,070.40

Finding the Fourth Proportional to 86,241,031,862.40, 129,361,547,793.60 and 20,883,814,070.40

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Solution

The fourth proportional to 86,241,031,862.40, 129,361,547,793.60 and 20,883,814,070.40 is: 31,325,721,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,241,031,862.40 : 129,361,547,793.60 = 20,883,814,070.40 : x
  2. Step 2: Convert to fraction form
    86,241,031,862.40/129,361,547,793.60 = 20,883,814,070.40/x
  3. Step 3: Cross multiply
    86,241,031,862.40x = 129,361,547,793.60 × 20,883,814,070.40
  4. Step 4: Simplify right side
    86,241,031,862.40x = 2,701,562,511,980,706,136,064
  5. Step 5: Solve for x
    x = 2,701,562,511,980,706,136,064/86,241,031,862.40
  6. Step 6: Final answer
    x = 31,325,721,105.60

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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.