Home / 1,938,630,455,841.30-2,907,945,683,962.20-647,841,710,055.12

Finding the Fourth Proportional to 1,938,630,455,841.30, 2,907,945,683,962.20 and 647,841,710,055.12

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Solution

The fourth proportional to 1,938,630,455,841.30, 2,907,945,683,962.20 and 647,841,710,055.12 is: 971,762,565,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,630,455,841.30 : 2,907,945,683,962.20 = 647,841,710,055.12 : x
  2. Step 2: Convert to fraction form
    1,938,630,455,841.30/2,907,945,683,962.20 = 647,841,710,055.12/x
  3. Step 3: Cross multiply
    1,938,630,455,841.30x = 2,907,945,683,962.20 × 647,841,710,055.12
  4. Step 4: Simplify right side
    1,938,630,455,841.30x = 1,883,888,504,645,477,271,076,864
  5. Step 5: Solve for x
    x = 1,883,888,504,645,477,271,076,864/1,938,630,455,841.30
  6. Step 6: Final answer
    x = 971,762,565,149.60

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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.