Home / 78,880,681.14-118,859,439.93-64,818,752.28

Finding the Fourth Proportional to 78,880,681.14, 118,859,439.93 and 64,818,752.28

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Solution

The fourth proportional to 78,880,681.14, 118,859,439.93 and 64,818,752.28 is: 97,670,563.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880,681.14 : 118,859,439.93 = 64,818,752.28 : x
  2. Step 2: Convert to fraction form
    78,880,681.14/118,859,439.93 = 64,818,752.28/x
  3. Step 3: Cross multiply
    78,880,681.14x = 118,859,439.93 × 64,818,752.28
  4. Step 4: Simplify right side
    78,880,681.14x = 7,704,320,593,549,651
  5. Step 5: Solve for x
    x = 7,704,320,593,549,651/78,880,681.14
  6. Step 6: Final answer
    x = 97,670,563.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.