Home / 1,788,167,647.80-2,685,312,105.30-971,874,271.80

Finding the Fourth Proportional to 1,788,167,647.80, 2,685,312,105.30 and 971,874,271.80

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Solution

The fourth proportional to 1,788,167,647.80, 2,685,312,105.30 and 971,874,271.80 is: 1,459,474,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,167,647.80 : 2,685,312,105.30 = 971,874,271.80 : x
  2. Step 2: Convert to fraction form
    1,788,167,647.80/2,685,312,105.30 = 971,874,271.80/x
  3. Step 3: Cross multiply
    1,788,167,647.80x = 2,685,312,105.30 × 971,874,271.80
  4. Step 4: Simplify right side
    1,788,167,647.80x = 2,609,785,746,894,162,432
  5. Step 5: Solve for x
    x = 2,609,785,746,894,162,432/1,788,167,647.80
  6. Step 6: Final answer
    x = 1,459,474,870.89

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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.