Home / 31,712,688-47,569,032-7,778,160

Finding the Fourth Proportional to 31,712,688, 47,569,032 and 7,778,160

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Solution

The fourth proportional to 31,712,688, 47,569,032 and 7,778,160 is: 11,667,240

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712,688 : 47,569,032 = 7,778,160 : x
  2. Step 2: Convert to fraction form
    31,712,688/47,569,032 = 7,778,160/x
  3. Step 3: Cross multiply
    31,712,688x = 47,569,032 × 7,778,160
  4. Step 4: Simplify right side
    31,712,688x = 369,999,541,941,120
  5. Step 5: Solve for x
    x = 369,999,541,941,120/31,712,688
  6. Step 6: Final answer
    x = 11,667,240

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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.