Home / 879,070,799.07-1,316,882,298.11-509,830,242.39

Finding the Fourth Proportional to 879,070,799.07, 1,316,882,298.11 and 509,830,242.39

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Solution

The fourth proportional to 879,070,799.07, 1,316,882,298.11 and 509,830,242.39 is: 763,745,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,070,799.07 : 1,316,882,298.11 = 509,830,242.39 : x
  2. Step 2: Convert to fraction form
    879,070,799.07/1,316,882,298.11 = 509,830,242.39/x
  3. Step 3: Cross multiply
    879,070,799.07x = 1,316,882,298.11 × 509,830,242.39
  4. Step 4: Simplify right side
    879,070,799.07x = 671,386,421,241,972,352
  5. Step 5: Solve for x
    x = 671,386,421,241,972,352/879,070,799.07
  6. Step 6: Final answer
    x = 763,745,561.74

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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.