Home / 1,989,113,886.80-2,977,931,267.40-1,759,531,374.80

Finding the Fourth Proportional to 1,989,113,886.80, 2,977,931,267.40 and 1,759,531,374.80

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Solution

The fourth proportional to 1,989,113,886.80, 2,977,931,267.40 and 1,759,531,374.80 is: 2,634,219,956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,113,886.80 : 2,977,931,267.40 = 1,759,531,374.80 : x
  2. Step 2: Convert to fraction form
    1,989,113,886.80/2,977,931,267.40 = 1,759,531,374.80/x
  3. Step 3: Cross multiply
    1,989,113,886.80x = 2,977,931,267.40 × 1,759,531,374.80
  4. Step 4: Simplify right side
    1,989,113,886.80x = 5,239,763,496,988,228,608
  5. Step 5: Solve for x
    x = 5,239,763,496,988,228,608/1,989,113,886.80
  6. Step 6: Final answer
    x = 2,634,219,956.82

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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.