Home / 1,129,748,352.40-1,559,012,962.44-621,107,362.48

Finding the Fourth Proportional to 1,129,748,352.40, 1,559,012,962.44 and 621,107,362.48

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Solution

The fourth proportional to 1,129,748,352.40, 1,559,012,962.44 and 621,107,362.48 is: 857,106,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,748,352.40 : 1,559,012,962.44 = 621,107,362.48 : x
  2. Step 2: Convert to fraction form
    1,129,748,352.40/1,559,012,962.44 = 621,107,362.48/x
  3. Step 3: Cross multiply
    1,129,748,352.40x = 1,559,012,962.44 × 621,107,362.48
  4. Step 4: Simplify right side
    1,129,748,352.40x = 968,314,429,173,239,808
  5. Step 5: Solve for x
    x = 968,314,429,173,239,808/1,129,748,352.40
  6. Step 6: Final answer
    x = 857,106,299.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.