Home / 909,913,167.09-1,255,679,521.92-492,225,779.07

Finding the Fourth Proportional to 909,913,167.09, 1,255,679,521.92 and 492,225,779.07

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Solution

The fourth proportional to 909,913,167.09, 1,255,679,521.92 and 492,225,779.07 is: 679,271,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,913,167.09 : 1,255,679,521.92 = 492,225,779.07 : x
  2. Step 2: Convert to fraction form
    909,913,167.09/1,255,679,521.92 = 492,225,779.07/x
  3. Step 3: Cross multiply
    909,913,167.09x = 1,255,679,521.92 × 492,225,779.07
  4. Step 4: Simplify right side
    909,913,167.09x = 618,077,830,939,317,120
  5. Step 5: Solve for x
    x = 618,077,830,939,317,120/909,913,167.09
  6. Step 6: Final answer
    x = 679,271,224.22

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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.