Home / 290,337,681.40-435,506,522.10-239,319,345.40

Finding the Fourth Proportional to 290,337,681.40, 435,506,522.10 and 239,319,345.40

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Solution

The fourth proportional to 290,337,681.40, 435,506,522.10 and 239,319,345.40 is: 358,979,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,337,681.40 : 435,506,522.10 = 239,319,345.40 : x
  2. Step 2: Convert to fraction form
    290,337,681.40/435,506,522.10 = 239,319,345.40/x
  3. Step 3: Cross multiply
    290,337,681.40x = 435,506,522.10 × 239,319,345.40
  4. Step 4: Simplify right side
    290,337,681.40x = 104,225,135,786,402,640
  5. Step 5: Solve for x
    x = 104,225,135,786,402,640/290,337,681.40
  6. Step 6: Final answer
    x = 358,979,018.10

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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.