Home / 278,527,029,831.81-417,872,514,178.38-89,869,386,237.57

Finding the Fourth Proportional to 278,527,029,831.81, 417,872,514,178.38 and 89,869,386,237.57

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Solution

The fourth proportional to 278,527,029,831.81, 417,872,514,178.38 and 89,869,386,237.57 is: 134,830,527,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,527,029,831.81 : 417,872,514,178.38 = 89,869,386,237.57 : x
  2. Step 2: Convert to fraction form
    278,527,029,831.81/417,872,514,178.38 = 89,869,386,237.57/x
  3. Step 3: Cross multiply
    278,527,029,831.81x = 417,872,514,178.38 × 89,869,386,237.57
  4. Step 4: Simplify right side
    278,527,029,831.81x = 37,553,946,374,761,282,011,136
  5. Step 5: Solve for x
    x = 37,553,946,374,761,282,011,136/278,527,029,831.81
  6. Step 6: Final answer
    x = 134,830,527,570.12

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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.