Finding the Fourth Proportional to 152,720,962.08, 210,754,962.08 and 84,043,330.08
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Solution
The fourth proportional to 152,720,962.08, 210,754,962.08 and 84,043,330.08 is: 115,979,814.45
Step by Step Solution
- Step 1: Write the proportion equation
152,720,962.08 : 210,754,962.08 = 84,043,330.08 : x - Step 2: Convert to fraction form
152,720,962.08/210,754,962.08 = 84,043,330.08/x - Step 3: Cross multiply
152,720,962.08x = 210,754,962.08 × 84,043,330.08 - Step 4: Simplify right side
152,720,962.08x = 17,712,548,844,087,324 - Step 5: Solve for x
x = 17,712,548,844,087,324/152,720,962.08 - Step 6: Final answer
x = 115,979,814.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.