Home / 1,390,944,047.40-2,086,416,071.10-369,737,519.40

Finding the Fourth Proportional to 1,390,944,047.40, 2,086,416,071.10 and 369,737,519.40

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Solution

The fourth proportional to 1,390,944,047.40, 2,086,416,071.10 and 369,737,519.40 is: 554,606,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,944,047.40 : 2,086,416,071.10 = 369,737,519.40 : x
  2. Step 2: Convert to fraction form
    1,390,944,047.40/2,086,416,071.10 = 369,737,519.40/x
  3. Step 3: Cross multiply
    1,390,944,047.40x = 2,086,416,071.10 × 369,737,519.40
  4. Step 4: Simplify right side
    1,390,944,047.40x = 771,426,302,564,807,936
  5. Step 5: Solve for x
    x = 771,426,302,564,807,936/1,390,944,047.40
  6. Step 6: Final answer
    x = 554,606,279.10

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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.