Home / 287,866,688.06-397,221,890.64-162,411,570.20

Finding the Fourth Proportional to 287,866,688.06, 397,221,890.64 and 162,411,570.20

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Solution

The fourth proportional to 287,866,688.06, 397,221,890.64 and 162,411,570.20 is: 224,108,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,866,688.06 : 397,221,890.64 = 162,411,570.20 : x
  2. Step 2: Convert to fraction form
    287,866,688.06/397,221,890.64 = 162,411,570.20/x
  3. Step 3: Cross multiply
    287,866,688.06x = 397,221,890.64 × 162,411,570.20
  4. Step 4: Simplify right side
    287,866,688.06x = 64,513,430,976,655,072
  5. Step 5: Solve for x
    x = 64,513,430,976,655,072/287,866,688.06
  6. Step 6: Final answer
    x = 224,108,706.05

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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.