Home / 31,872,473,421.60-47,808,710,132.40-9,789,470,119.20

Finding the Fourth Proportional to 31,872,473,421.60, 47,808,710,132.40 and 9,789,470,119.20

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Solution

The fourth proportional to 31,872,473,421.60, 47,808,710,132.40 and 9,789,470,119.20 is: 14,684,205,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,872,473,421.60 : 47,808,710,132.40 = 9,789,470,119.20 : x
  2. Step 2: Convert to fraction form
    31,872,473,421.60/47,808,710,132.40 = 9,789,470,119.20/x
  3. Step 3: Cross multiply
    31,872,473,421.60x = 47,808,710,132.40 × 9,789,470,119.20
  4. Step 4: Simplify right side
    31,872,473,421.60x = 468,021,939,278,624,129,024
  5. Step 5: Solve for x
    x = 468,021,939,278,624,129,024/31,872,473,421.60
  6. Step 6: Final answer
    x = 14,684,205,178.80

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Double scale
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1.5x scale

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.