Home / 30,864,237,543.47-42,513,288,047.57-21,816,440,631.83

Finding the Fourth Proportional to 30,864,237,543.47, 42,513,288,047.57 and 21,816,440,631.83

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Solution

The fourth proportional to 30,864,237,543.47, 42,513,288,047.57 and 21,816,440,631.83 is: 30,050,592,484.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,864,237,543.47 : 42,513,288,047.57 = 21,816,440,631.83 : x
  2. Step 2: Convert to fraction form
    30,864,237,543.47/42,513,288,047.57 = 21,816,440,631.83/x
  3. Step 3: Cross multiply
    30,864,237,543.47x = 42,513,288,047.57 × 21,816,440,631.83
  4. Step 4: Simplify right side
    30,864,237,543.47x = 927,488,624,753,377,280,000
  5. Step 5: Solve for x
    x = 927,488,624,753,377,280,000/30,864,237,543.47
  6. Step 6: Final answer
    x = 30,050,592,484.17

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1.5x scale

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.