Home / 903,668,280.30-1,355,502,420.45-865,404,528.30

Finding the Fourth Proportional to 903,668,280.30, 1,355,502,420.45 and 865,404,528.30

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Solution

The fourth proportional to 903,668,280.30, 1,355,502,420.45 and 865,404,528.30 is: 1,298,106,792.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,668,280.30 : 1,355,502,420.45 = 865,404,528.30 : x
  2. Step 2: Convert to fraction form
    903,668,280.30/1,355,502,420.45 = 865,404,528.30/x
  3. Step 3: Cross multiply
    903,668,280.30x = 1,355,502,420.45 × 865,404,528.30
  4. Step 4: Simplify right side
    903,668,280.30x = 1,173,057,932,779,040,512
  5. Step 5: Solve for x
    x = 1,173,057,932,779,040,512/903,668,280.30
  6. Step 6: Final answer
    x = 1,298,106,792.45

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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.