Home / 77,671,075.10-107,185,863.47-42,863,516.55

Finding the Fourth Proportional to 77,671,075.10, 107,185,863.47 and 42,863,516.55

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Solution

The fourth proportional to 77,671,075.10, 107,185,863.47 and 42,863,516.55 is: 59,151,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,671,075.10 : 107,185,863.47 = 42,863,516.55 : x
  2. Step 2: Convert to fraction form
    77,671,075.10/107,185,863.47 = 42,863,516.55/x
  3. Step 3: Cross multiply
    77,671,075.10x = 107,185,863.47 × 42,863,516.55
  4. Step 4: Simplify right side
    77,671,075.10x = 4,594,363,032,558,068
  5. Step 5: Solve for x
    x = 4,594,363,032,558,068/77,671,075.10
  6. Step 6: Final answer
    x = 59,151,531.34

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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.