Home / 1,006,429,038.98-1,388,881,722.64-554,317,256.16

Finding the Fourth Proportional to 1,006,429,038.98, 1,388,881,722.64 and 554,317,256.16

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Solution

The fourth proportional to 1,006,429,038.98, 1,388,881,722.64 and 554,317,256.16 is: 764,963,127.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,429,038.98 : 1,388,881,722.64 = 554,317,256.16 : x
  2. Step 2: Convert to fraction form
    1,006,429,038.98/1,388,881,722.64 = 554,317,256.16/x
  3. Step 3: Cross multiply
    1,006,429,038.98x = 1,388,881,722.64 × 554,317,256.16
  4. Step 4: Simplify right side
    1,006,429,038.98x = 769,881,105,624,578,944
  5. Step 5: Solve for x
    x = 769,881,105,624,578,944/1,006,429,038.98
  6. Step 6: Final answer
    x = 764,963,127.86

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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.