Home / 191,808,985.80-287,382,804.30-89,362,907.40

Finding the Fourth Proportional to 191,808,985.80, 287,382,804.30 and 89,362,907.40

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Solution

The fourth proportional to 191,808,985.80, 287,382,804.30 and 89,362,907.40 is: 133,890,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,808,985.80 : 287,382,804.30 = 89,362,907.40 : x
  2. Step 2: Convert to fraction form
    191,808,985.80/287,382,804.30 = 89,362,907.40/x
  3. Step 3: Cross multiply
    191,808,985.80x = 287,382,804.30 × 89,362,907.40
  4. Step 4: Simplify right side
    191,808,985.80x = 25,681,362,929,013,224
  5. Step 5: Solve for x
    x = 25,681,362,929,013,224/191,808,985.80
  6. Step 6: Final answer
    x = 133,890,301.45

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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.