Home / 556,909,621.96-831,276,507.17-515,868,205

Finding the Fourth Proportional to 556,909,621.96, 831,276,507.17 and 515,868,205

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Solution

The fourth proportional to 556,909,621.96, 831,276,507.17 and 515,868,205 is: 770,015,641.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,909,621.96 : 831,276,507.17 = 515,868,205 : x
  2. Step 2: Convert to fraction form
    556,909,621.96/831,276,507.17 = 515,868,205/x
  3. Step 3: Cross multiply
    556,909,621.96x = 831,276,507.17 × 515,868,205
  4. Step 4: Simplify right side
    556,909,621.96x = 428,829,119,612,457,536
  5. Step 5: Solve for x
    x = 428,829,119,612,457,536/556,909,621.96
  6. Step 6: Final answer
    x = 770,015,641.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.