Home / 145,308,973.80-217,716,810.30-87,680,152.20

Finding the Fourth Proportional to 145,308,973.80, 217,716,810.30 and 87,680,152.20

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Solution

The fourth proportional to 145,308,973.80, 217,716,810.30 and 87,680,152.20 is: 131,371,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,308,973.80 : 217,716,810.30 = 87,680,152.20 : x
  2. Step 2: Convert to fraction form
    145,308,973.80/217,716,810.30 = 87,680,152.20/x
  3. Step 3: Cross multiply
    145,308,973.80x = 217,716,810.30 × 87,680,152.20
  4. Step 4: Simplify right side
    145,308,973.80x = 19,089,443,063,602,528
  5. Step 5: Solve for x
    x = 19,089,443,063,602,528/145,308,973.80
  6. Step 6: Final answer
    x = 131,371,398.23

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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.