Home / 1,312,072,968.60-1,968,408,051.30-766,533,691.80

Finding the Fourth Proportional to 1,312,072,968.60, 1,968,408,051.30 and 766,533,691.80

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Solution

The fourth proportional to 1,312,072,968.60, 1,968,408,051.30 and 766,533,691.80 is: 1,149,974,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,072,968.60 : 1,968,408,051.30 = 766,533,691.80 : x
  2. Step 2: Convert to fraction form
    1,312,072,968.60/1,968,408,051.30 = 766,533,691.80/x
  3. Step 3: Cross multiply
    1,312,072,968.60x = 1,968,408,051.30 × 766,533,691.80
  4. Step 4: Simplify right side
    1,312,072,968.60x = 1,508,851,090,531,832,576
  5. Step 5: Solve for x
    x = 1,508,851,090,531,832,576/1,312,072,968.60
  6. Step 6: Final answer
    x = 1,149,974,983.59

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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.