Home / 105,378,681.42-145,424,302.04-57,693,140.26

Finding the Fourth Proportional to 105,378,681.42, 145,424,302.04 and 57,693,140.26

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Solution

The fourth proportional to 105,378,681.42, 145,424,302.04 and 57,693,140.26 is: 79,617,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,378,681.42 : 145,424,302.04 = 57,693,140.26 : x
  2. Step 2: Convert to fraction form
    105,378,681.42/145,424,302.04 = 57,693,140.26/x
  3. Step 3: Cross multiply
    105,378,681.42x = 145,424,302.04 × 57,693,140.26
  4. Step 4: Simplify right side
    105,378,681.42x = 8,389,984,654,806,323
  5. Step 5: Solve for x
    x = 8,389,984,654,806,323/105,378,681.42
  6. Step 6: Final answer
    x = 79,617,476.15

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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.