Home / 431,316,999.09-646,975,457.51-103,792,551.57

Finding the Fourth Proportional to 431,316,999.09, 646,975,457.51 and 103,792,551.57

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Solution

The fourth proportional to 431,316,999.09, 646,975,457.51 and 103,792,551.57 is: 155,688,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,316,999.09 : 646,975,457.51 = 103,792,551.57 : x
  2. Step 2: Convert to fraction form
    431,316,999.09/646,975,457.51 = 103,792,551.57/x
  3. Step 3: Cross multiply
    431,316,999.09x = 646,975,457.51 × 103,792,551.57
  4. Step 4: Simplify right side
    431,316,999.09x = 67,151,233,537,612,048
  5. Step 5: Solve for x
    x = 67,151,233,537,612,048/431,316,999.09
  6. Step 6: Final answer
    x = 155,688,817.46

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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.