Home / 1,128,710,773.02-1,693,284,192.90-429,148,516.36

Finding the Fourth Proportional to 1,128,710,773.02, 1,693,284,192.90 and 429,148,516.36

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Solution

The fourth proportional to 1,128,710,773.02, 1,693,284,192.90 and 429,148,516.36 is: 643,805,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,710,773.02 : 1,693,284,192.90 = 429,148,516.36 : x
  2. Step 2: Convert to fraction form
    1,128,710,773.02/1,693,284,192.90 = 429,148,516.36/x
  3. Step 3: Cross multiply
    1,128,710,773.02x = 1,693,284,192.90 × 429,148,516.36
  4. Step 4: Simplify right side
    1,128,710,773.02x = 726,670,399,158,875,136
  5. Step 5: Solve for x
    x = 726,670,399,158,875,136/1,128,710,773.02
  6. Step 6: Final answer
    x = 643,805,673.28

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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.