Finding the Fourth Proportional to 19,708,898.96, 29,381,167.68 and 19,398,301.20
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Solution
The fourth proportional to 19,708,898.96, 29,381,167.68 and 19,398,301.20 is: 28,918,142.07
Step by Step Solution
- Step 1: Write the proportion equation
19,708,898.96 : 29,381,167.68 = 19,398,301.20 : x - Step 2: Convert to fraction form
19,708,898.96/29,381,167.68 = 19,398,301.20/x - Step 3: Cross multiply
19,708,898.96x = 29,381,167.68 × 19,398,301.20 - Step 4: Simplify right side
19,708,898.96x = 569,944,740,264,345.25 - Step 5: Solve for x
x = 569,944,740,264,345.25/19,708,898.96 - Step 6: Final answer
x = 28,918,142.07
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.