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Finding the Fourth Proportional to 553,671,001.70, 830,506,502.55 and 144,727,152.20

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Solution

The fourth proportional to 553,671,001.70, 830,506,502.55 and 144,727,152.20 is: 217,090,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,671,001.70 : 830,506,502.55 = 144,727,152.20 : x
  2. Step 2: Convert to fraction form
    553,671,001.70/830,506,502.55 = 144,727,152.20/x
  3. Step 3: Cross multiply
    553,671,001.70x = 830,506,502.55 × 144,727,152.20
  4. Step 4: Simplify right side
    553,671,001.70x = 120,196,840,997,643,520
  5. Step 5: Solve for x
    x = 120,196,840,997,643,520/553,671,001.70
  6. Step 6: Final answer
    x = 217,090,728.30

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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.