Home / 1,570,562,678.98-2,355,823,839.21-521,783,130.25

Finding the Fourth Proportional to 1,570,562,678.98, 2,355,823,839.21 and 521,783,130.25

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Solution

The fourth proportional to 1,570,562,678.98, 2,355,823,839.21 and 521,783,130.25 is: 782,667,991.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,562,678.98 : 2,355,823,839.21 = 521,783,130.25 : x
  2. Step 2: Convert to fraction form
    1,570,562,678.98/2,355,823,839.21 = 521,783,130.25/x
  3. Step 3: Cross multiply
    1,570,562,678.98x = 2,355,823,839.21 × 521,783,130.25
  4. Step 4: Simplify right side
    1,570,562,678.98x = 1,229,229,137,140,566,528
  5. Step 5: Solve for x
    x = 1,229,229,137,140,566,528/1,570,562,678.98
  6. Step 6: Final answer
    x = 782,667,991.28

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Double scale
Find fourth proportional to 1,570,562,679.98, 2,355,823,840.71 and 521,783,131.25
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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.