Home / 145,657,426.23-218,517,632.15-77,490,210.87

Finding the Fourth Proportional to 145,657,426.23, 218,517,632.15 and 77,490,210.87

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Solution

The fourth proportional to 145,657,426.23, 218,517,632.15 and 77,490,210.87 is: 116,252,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,657,426.23 : 218,517,632.15 = 77,490,210.87 : x
  2. Step 2: Convert to fraction form
    145,657,426.23/218,517,632.15 = 77,490,210.87/x
  3. Step 3: Cross multiply
    145,657,426.23x = 218,517,632.15 × 77,490,210.87
  4. Step 4: Simplify right side
    145,657,426.23x = 16,932,977,393,729,142
  5. Step 5: Solve for x
    x = 16,932,977,393,729,142/145,657,426.23
  6. Step 6: Final answer
    x = 116,252,070.57

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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.