Home / 289,241,175,439.89-433,853,742,993.43-77,007,128,769.81

Finding the Fourth Proportional to 289,241,175,439.89, 433,853,742,993.43 and 77,007,128,769.81

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Solution

The fourth proportional to 289,241,175,439.89, 433,853,742,993.43 and 77,007,128,769.81 is: 115,508,557,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,241,175,439.89 : 433,853,742,993.43 = 77,007,128,769.81 : x
  2. Step 2: Convert to fraction form
    289,241,175,439.89/433,853,742,993.43 = 77,007,128,769.81/x
  3. Step 3: Cross multiply
    289,241,175,439.89x = 433,853,742,993.43 × 77,007,128,769.81
  4. Step 4: Simplify right side
    289,241,175,439.89x = 33,409,831,053,959,117,144,064
  5. Step 5: Solve for x
    x = 33,409,831,053,959,117,144,064/289,241,175,439.89
  6. Step 6: Final answer
    x = 115,508,557,877.86

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1.5x scale

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.